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Weinberg fellowships in gravitation, multi-messenger astrophysics and AI/ML

The Center for Gravitational Physics (CGP) within the Weinberg Institute at the University of Texas at Austin invites applicants for multiple Weinberg Institute Postdoctoral Fellowships. These are full-time postdoctoral positions starting in September 2026.

This position is open to candidates in gravitational-wave physics, astrophysics and data analysis, especially in (but not limited to) the areas of:

(1) Cosmological inference with gravitational-wave observations
(2) Applications of AI/ML techniques broadly to astrophysics, cosmology or gravitational wave data analysis
(3) Nuclear astrophysics with gravitational-wave observations
(4) Gravitational-wave multimessenger astrophysics
(5) Numerical simulations of compact binaries

Applicants must submit a cover letter (no more than 1 page), CV, list of publications, a short statement of research interests (no more than 3 pages in length) and arrange to have at least three letters of reference uploaded to AJO. Applications are due November 21, 2025. The completion of a PhD is required prior to the beginning of this appointment. The initial appointment is for two years, with the possibility of extension to a third year subject to available funding and research performance.

Inquiries may be sent to Profs. Hsin-Yu Chen (hsinyu(at)austin.utexas.edu) or Jay Wadekar (jay.wadekar(at)utexas.edu).

ESA Archival Research Visitor Programme

To increase the scientific return from its space science missions, ESA welcomes applications from scientists interested in pursuing research based on publicly available data in the ESA Space Science Archives. The Archives host data from all current and past ESA space science missions in astronomy, planetary science, and heliophysics.

The ESA Archival Research Visitor Programme is open to scientists at all career levels who are affiliated with institutes in ESA Member States and Cooperating States (note that all visits must comply with the ESA Security Directives, which may necessitate additional checks). Early-career scientists are particularly encouraged to apply, including PhD students (see below). We encourage applications from women and minorities. The peer-review evaluation process is anonymised to ensure equal opportunities for all applicants.

Residence lasts typically between one and three months, also distributed over multiple visits, depending on the complexity of the research project. The research projects can be carried out at ESAC (Madrid, Spain) and at ESTEC (Noordwijk, Netherlands). To offset the expenses incurred by visitors, ESA covers travel costs from and to the home institution and provides support for lodging expenses and meals.

During their stay, visiting scientists have the opportunity to interact with archive and mission specialists for questions on the retrieval, calibration, and analysis of archival data. In principle, all areas of space research covered by ESA science missions can be supported. To ensure that technical expertise in the specific area of interest is available at ESAC or ESTEC, applicants should consult the table of expertise and contact the relevant scientists in their field of interest (this is very important). In case of doubts, write to the programme coordinators for assistance at arvp@cosmos.esa.int.

The next deadline for applications is Monday 10 November 2025, 23:59 UTC

Call for applications

Applications can be submitted at any time by sending email to arvp(at)cosmos.esa.int. The email should contain a single PDF document of at most three pages detailing:

  • description of the goals of the research project
  • public archival data on which help is sought
  • which type of expertise you expect to gain
  • proposed time and duration of the visit
  • expected publications
  • contact information

Please keep it short (max 3 pages) and follow the simple template provided here. Note that this is just a template, you can use the font type and size that you prefer (not smaller than 10), but please do not exceed three pages. You must indicate the (expected) year of your PhD.

To prevent unconscious biases, your name, email address, and other contact information (on the third page) will not be visible to reviewers. To help in the process, you must write your application in an “anonymous” way, i.e. do not identify yourself in the text. For instance, do not mention the name of your institute or collaborators in the scientific description of the project (page 1 and 2) and when you are referring to one of your papers, do not write “I have shown that … (Author Name, 2023, Journal, 954, 125)”, but rather write “It has been shown that … (Author Name, 2023, Journal, 954, 125)”. If you identify yourself, the application will not be considered.

We encourage you to contact us if you have any questions about the data that could support your research project. You will find the names of our experts in the various science areas in the table of expertise below. Or write to the programme coordinators for assistance at arvp(at)cosmos.esa.int.

Students

We welcome proposals by graduate students. The proposals can be submitted by the students themselves or in collaboration with their supervisors. If you are a student and would like to visit ESA to learn more about doing science with archival data, make sure that you coordinate and agree your research project with your supervisor. Mention this in the application, but omit the name of the supervisor, otherwise the application is not anonymous.

Deadlines

Applications can be submitted at any time and are reviewed twice a year, with deadlines usually on 30 April and 31 October. The results of the review will be communicated to applicants within about two months of the deadlines. Applicants are encouraged to contact the ESA scientists or the programme coordinators well ahead of the deadlines in order to discuss their research plans.

Applications received by 10 November 2025 (23:59 UTC) will be considered for visits in spring and summer 2026.

Please find here full details.

Burke-Leinweber Fellowships in Theoretical Physics and Astrophysics at Caltech

The California Institute of Technology (Caltech) solicits applications for the Prize Fellowship program of the  Walter Burke Institute for Theoretical Physics and the newly founded Leinweber Forum for Theoretical Physics. Fellowships are to begin in the Fall 2026, offering an opportunity for outstanding recent and new Ph.D. recipients to perform research at Caltech for three to four years. Application deadline November 15th 2025.

They are selected by a faculty committee representing all areas of theoretical physics and astrophysics at Caltech and are provided with:

flexibility, support, and freedom in choosing research directions within theoretical physics and astrophysics (including but not limited to theoretical astrophysics/cosmology, condensed matter theory, general relativity, particle/string theory, mathematical physics, and quantum information),
an inclusive environment with faculty mentorship and activities organized by the Burke Institute and Leinweber Forum to promote scientific exchanges and professional growth.

The Burke and Leinweber Fellowship program significantly expands and strengthens Caltech’s long-standing program of Prize Fellowships in Theoretical Physics and Astrophysics. The Prize Fellowship program has been successful with over 95 percent of the more than 120 former fellows holding distinguished academic positions, as shown at http://burkeinstitute.caltech.edu/people/postdoctoral-fellows.

Applicants should submit curriculum vitae, a statement of research interests (no more than 5 pages, excluding references), and a list of publications (refereed papers on top). Applicants should also ensure that at least three letters of reference are submitted on their behalf.

Applicants interested in being considered for a joint appointment in theoretical astrophysics with Carnegie Observatories must also apply here.

Qualifications and terms of appointment:

PhD in Physics, Astronomy, or related field (completed or expected by start date)
Eligibility extends to current postdoctoral scholars
Appointment term: 3 to 4 years
Salary: $85,000 in the first year
Research fund: $10,000 per annum
One-time allowance to assist with the move
Annual paid time off: 21 days, not including Caltech Holidays
Annual sick leave: 15 days
Health, dental, and vision insurance

Process timeline:

  • September 1, 2025: Applications are accepted
  • November 15, 2025: Deadline for applications, including reference letters
  • Mid-December 2025 – End of February 2026: Offers
  • View or update your application using the “Status” link after login

Please find here full details and to apply.

Assistant Professor of Gravitational‑Wave & Multi‑Messenger Astrophysics at Vanderbilt University

The Department of Physics & Astronomy at Vanderbilt University invites applications for a tenure‑track Assistant Professor in gravitational‑wave and multi‑messenger astrophysics. We seek an outstanding scholar whose research spans gravitational‑wave theory, data analysis, and/or multi‑messenger astrophysics, ideally grounded in gravitational physics and relativistic astrophysics. Review of applications will begin November 1, 2025

Vanderbilt has growing strength, leadership, and strategic momentum in gravitational‑wave science (e.g., in PTAs, LISA, and LIGO-Virgo-KAGRA) and multi‑messenger astrophysics (e.g., in SDSS, LSST, and UVEX), with collaborative ties across Physics & Astronomy, Mathematics, Data Science, and campus‑wide initiatives. Vanderbilt has also recently established the College of Connected Computing, its first new college in 40 years, to advance breakthrough discoveries and strengthen computing education for students through a “computing for all” approach.

The candidate will be expected to develop a visible, high-impact, externally funded research program in gravitational‑wave and/or multi‑messenger astrophysics; engage collaboratively with national and international efforts (e.g., PTAs, LISA, LIGO-Virgo-KAGRA) and with Vanderbilt’s broader research efforts, and computational and data‑intensive ecosystem. Candidates will be expected to teach at both undergraduate and graduate levels, advise PhD students, and mentor undergraduate students. They should also contribute to the department, college, and profession, including activities that promote a welcoming and collaborative academic community.

Qualifications

  • Ph.D. in Physics, Astronomy/Astrophysics, or a closely related field by August 1, 2026. Preferably with several years of postdoctoral research experience.
  • Evidence of research excellence and potential for leadership in gravitational‑wave and/or multi‑messenger astrophysics.
  • Commitment to effective teaching and mentoring at both undergraduate and graduate levels.
  • Ability to collaborate across subfields of physics, astronomy, mathematics, and data/computational science.

Application Instructions

Please submit the following:

  • Cover letter describing the candidate’s reasons for applying, and their fit to the position;
  • Curriculum vitae with publication list. If relevant, the latter should be separated into publications for which the candidate made major contributions or led, then other large collaborative publications;
  • Research statement, summarizing past achievements and 3–5 year vision, including funding plans, strategy for interdisciplinary collaboration, and complementarity with existing departmental research;
  • Teaching and mentoring statement, addressing (where relevant) the applicant’s approach to classroom and laboratory instruction, mentorship of students and postdoctoral scholars, and ways to foster a welcoming environment for the development of scholars who come to Vanderbilt with many different backgrounds and experiences. Evidence of teaching effectiveness (e.g., course evaluations) must be included, if available;

Applicants should arrange for three letters of confidential recommendation to be uploaded via the same link.

Review of applications will begin November 1, 2025, and will continue until the position is filled. For full consideration, please ensure all materials (including letters) are submitted by November 15, 2025. Inquiries may be directed to Professor Stephen Taylor: stephen.r.taylor(at)vanderbilt.edu.

Application Process
This institution is using Interfolio’s Faculty Search to conduct this search. Applicants to this position receive a free Dossier account and can send all application materials, including confidential letters of recommendation, free of charge.

Please find here details and to apply.

Faculty position in Experimental Quantum Science at Princeton University

The Princeton Quantum Initiative (PQI) and the Department of Physics at Princeton University seek applications for a tenure-track assistant professor faculty position in experimental quantum science. Candidates in all areas of experimental quantum science, including quantum information processing, sensing, computing, and networks, who research different experimental platforms, are encouraged to apply.

Candidates should have a commitment to teaching and a demonstrated ability to pursue a high impact research program. A start date of September 1, 2026 is preferred. The University is committed to fostering an academic environment that acknowledges and encourages diversity and differences. We seek faculty members who will create a climate that embraces excellence, with a strong commitment to teaching and mentoring that will enhance the work of the department and that will attract and retain a diverse student body.

Princeton University is an Equal Opportunity Employer and all qualified applicants will receive consideration for employment without regard to age, race, color, religion, sex, sexual orientation, gender identity or expression, national origin, disability status, protected veteran status, or any other characteristic protected by law. The selected candidate will be required to successfully complete a background check.

Applications require: a cover letter, complete curriculum vitae, descriptions of research and teaching interests, and the contact information for three references. Applicant review will begin in November 2025. For full consideration, please submit all application documents and reference letters no later than December 1, 2025 (11:59 EST) at https://www.princeton.edu/acad-positions/position/39903

Maria de Maeztu Postdoctoral position in Gravitational Waves Astronomy at the ICCUB

The Institute of Cosmos Sciences of the University of Barcelona (ICCUB) invites applications for a 3-year Postdoctoral position in gravitational wave astronomy, as part of its current call for two postdoctoral positions and one ICCUB Postdoctoral Fellowship, offered under the framework of its Unit of Excellence Maria de Maeztu. Application deadline: November 30th, 2025.

The successful candidate will lead projects spanning both theoretical and data analysis aspects of gravitational wave science. Research topics may include, but not be limited to parameter estimation, gravitational lensing, numerical relativity simulations, detector characterization, mock data generation, neutron star asteroseismology, magnetohydrodynamic modeling of neutron stars and multimessenger signals, stellar/BH dynamics, tests of general relativity, relations to high energy and nuclear physics and connections to holography. The ICCUB is a member of the LVK Collaboration, the Einstein Telescope Collaboration and is contributing to the LISA mission on theoretical models, computing and instrumentation activities. We are also part of the Spanish RedONGRA network (Red Nacional en Ondas Gravitacionales), which fosters national collaboration in gravitational wave research. In addition, we are actively participating in surveys (ESA-Gaia, Weave, SDSS-IV) and EM follow-up missions at various wavelengths (BlackGEM, MAGIC and LSST), which allow scientists at the ICCUB (https://icc.ub.edu/research/gravitational-waves) to build an end-to-end understanding of all steps leading to GW sources. Prior research experience in gravitational wave data analysis is preferred, but not strictly required. Experience with large-scale computation, Bayesian methods, and/or machine learning/AI is considered a plus.

These positions are part of a dynamic and interdisciplinary research environment at one of Europe’s leading centers in cosmology, astrophysics, and particle physics. The Institute of Cosmos Sciences (ICCUB) at the University of Barcelona, established in 2006, focuses on cosmology, astrophysics, particle physics, quantum physics, and nuclear physics. With over 70 scientists, 20 engineers, and 90 postdoctoral researchers and PhD students (35% international), ICCUB collaborates internationally on projects like Gaia, LHCb, Virgo, MAGIC, CTA, and DESI. It also has an Advanced Technology Unit supporting experimental research requiring cutting-edge technology.

Requirements:

Applicants must hold a PhD in Physics, Astrophysics, or a closely related field by the start date of the contract, approximately in October 2026. We are looking for motivated researchers with a strong track record and a collaborative spirit.

Employment Terms:

  • Duration: up to 3 years
  • Start Date: Preferably by Fall 2026 (flexibility possible for parental or special circumstances)
  • Salary:
  • Maria de Maeztu Postdoctoral Positions: Approx. 36.360€/year (gross), including full social security and public healthcare coverage for the researcher, spouse or registered partner and children
  • ICCUB Postdoctoral Fellowship: Approx. 42.900€/year (gross), including full social security and public healthcare coverage for the researcher, spouse or registered partner and children
  • Research Support:
  • Fellowship: €8,000/year for travel and training
  • Postdoctoral Positions: €5,000/year for travel and training
  • Access to ICCUB’s advanced computational infrastructure, training programs, and career development resources

Equal Employment Opportunity Statement

ICCUB offers and promotes a diverse and inclusive environment and welcomes applicants regardless of age, disability, gender, nationality, race, religion or sexual orientation (for additional information please see the Diversity, Equity and Inclusion Commission. Job seekers in need of a reasonable accommodation to complete the application process should call or email secretaria@icc.ub.edu with their request.

Application Process:

To apply, please complete the application form and provide contact details for three referees. After submission, you will receive instructions to upload the following documents:

  • Curriculum Vitae
  • Cover Letter
  • Research statement (max 4pp) outlining research experience, interests, research plan and how the candidate’s profiles and research plan would fit with the scientific profile of the position(s)
  • Publication List
  • Three Reference Letters (referees will be contacted directly)

Reference letters must be sent directly by the referees through the on-line application system (the system will contact these scientists you named, asking them to submit their letters of reference after a few working days).

Note: Applicants should select their preferred job offer.

Note: Your application will only be considered complete once at least two reference letters have been received.

For questions regarding the application process, please contact Esther Pallarès at secretaria@icc.ub.edu.

Deadline

Application deadline: November 30th, 2025
Review of applications will begin immediately after the deadline and will continue until all positions are filled.

Selection process:

The selection process consists of two phases: merit-based evaluation and an interview.

  1. Merit-Based Evaluation

The Selection Committee will verify and assess the merits documented by the applicants. The maximum score for this phase is 80 points, distributed across the following categories:

Curriculum Vitae — Maximum: 30 points

The following aspects will be assessed:

  • Scientific and technical contributions in the relevant research field.
  • Quality and impact of publications, particularly those where the applicant is the lead author.
  • Participation in research projects, collaborations, and scientific dissemination activities.
  • Teaching experience, supervision of academic work and mentoring (e.g., theses, dissertations).

Alignment with the María de Maeztu Challenge — Maximum: 30 points

The following aspects will be assessed:

  • A research statement that is ambitious, innovative, and clearly aligned with the objectives of the María de Maeztu Challenge.
  • Potential for high-impact contributions within the proposed research line.
  • Strategic use of relevant infrastructures and resources.

Reference Letters — Maximum: 20 points

The following aspects will be assessed:

  • Strength and relevance of the recommendations.
  • Evidence of the applicant’s research capabilities, independence, and potential for future contributions.
  1. Interview: maximum 20 points

Applicants who score at least 50 points in the merit-based evaluation will be invited to an interview. The interview will be conducted in English and may take place online via a video conferencing platform.

Format and Content

  • A presentation by the candidate: The presentation will last up to 20 minutes.
  • Applicants will present their professional profile, focusing on how it aligns with the position and the María de Maeztu Challenge.
  • They will also outline their vision for future scientific development and how they plan to contribute to the research environment.

Following the presentation, the Selection Committee may ask questions related to:

  • The applicant’s research background and achievements.
  • The proposed research statement.
  • Any other relevant aspects of the application.

Scoring Criteria — Maximum: 20 points

  • Up to 10 points for the alignment of the applicant’s profile with the objectives of the position.
  • Up to 10 points for the clarity, feasibility, and impact of the applicant’s future research vision.

A minimum of 10 points is required to pass the interview phase.

Funding:

These positions are financed by the State Agency for Research of the Spanish Ministry of Science, Innovation and Universities through the “Unit of Excellence María de Maeztu 04/2019-03/2031” awarded to the Institute of Cosmos Sciences, grant CEX2024-001451-M funded by MICIU/AEI/10.13039/501100011033.

The Unit of Excellence Maria de Maeztu recognition has been awarded by the Spanish Government in 2025 for the third time to the ICCUB, as a center with a highly competitive strategic research programmes in the frontiers of knowledge.

Maria de Maeztu-ICCUB Postdoctoral positions and Fellowship

The Institute of Cosmos Sciences of the University of Barcelona (ICCUB) invites applications for two postdoctoral positions and one ICCUB Postdoctoral Fellowship, offered under the framework of its Unit of Excellence Maria de Maeztu. All positions are funded for up to 3 years. The three scientific profiles are as follows:

Position in Beyond the standard models of cosmology and particle physics

Position in Gravitational wave astronomy
Position in Quantum Resources for Science and Technology

Application deadline: November 30th, 2025

These positions are part of a dynamic and interdisciplinary research environment at one of Europe’s leading centers in cosmology, astrophysics, and particle physics. The Institute of Cosmos Sciences (ICCUB) at the University of Barcelona, established in 2006, focuses on cosmology, astrophysics, particle physics, quantum physics, and nuclear physics. With over 70 scientists, 20 engineers, and 90 postdoctoral researchers and PhD students (35% international), ICCUB collaborates internationally on projects like Gaia, LHCb, Virgo, MAGIC, CTA, and DESI. It also has an Advanced Technology Unit supporting experimental research requiring cutting-edge technology.

Requirements:

Applicants must hold a PhD in Physics, Astrophysics, or a closely related field by the start date of the contract, approximately in October 2026. We are looking for motivated researchers with a strong track record and a collaborative spirit.

Employment Terms:

  • Duration: up to 3 years
  • Start Date: Preferably by Fall 2026 (flexibility possible for parental or special circumstances)
  • Salary:
    • Maria de Maeztu Postdoctoral Positions: Approx. 36.360€/year (gross), including full social security and public healthcare coverage for the researcher, spouse or registered partner and children
    • ICCUB Postdoctoral Fellowship: Approx. 42.900€/year (gross), including full social security and public healthcare coverage for the researcher, spouse or registered partner and children
  • Research Support:
    • Fellowship: €8,000/year for travel and training
    • Postdoctoral Positions: €5,000/year for travel and training
  • Access to ICCUB’s advanced computational infrastructure, training programs, and career development resources

Equal Employment Opportunity Statement

ICCUB offers and promotes a diverse and inclusive environment and welcomes applicants regardless of age, disability, gender, nationality, race, religion or sexual orientation (for additional information please see the Diversity, Equity and Inclusion Commission. Job seekers in need of a reasonable accommodation to complete the application process should call or email secretaria(at)icc.ub.edu with their request.

Application Process:

To apply, please complete the application form and provide contact details for three referees. After submission, you will receive instructions to upload the following documents:

  • Curriculum Vitae
  • Cover Letter
  • Research statement (max 4 pp) outlining research experience, interests, research plan and how the candidate’s profiles and research plan would fit with the scientific profile of the position(s)
  • Publication List
  • The contact of three Reference Letter writers (referees will be contacted directly)

Reference letters must be sent directly by the referees through the on-line application system (the system will contact these scientists you named, asking them to submit their letters of reference after a few working days). Applications will only be considered once at least two reference letters have been received. Note: Applicants should select their preferred job offer. Note: For questions regarding the application process, please contact Esther Pallarès at secretaria(at)icc.ub.edu. Deadline Application deadline: November 30th, 2025
Review of applications will begin immediately after the deadline and will continue until all positions are filled.

Selection process:

The selection process consists of two phases: merit-based evaluation and an interview. 1. Merit-Based Evaluation The Selection Committee will verify and assess the merits documented by the applicants. The maximum score for this phase is 80 points, distributed across the following categories: Curriculum Vitae — Maximum: 30 points The following aspects will be assessed:

  • Scientific and technical contributions in the relevant research field.
  • Quality and impact of publications, particularly those where the applicant is the lead author.
  • Participation in research projects, collaborations, and scientific dissemination activities.
  • Teaching experience, supervision of academic work and mentoring (e.g., theses, dissertations).

Alignment with the María de Maeztu Challenge — Maximum: 30 points The following aspects will be assessed:

  • A research statement that is ambitious, innovative, and clearly aligned with the objectives of the María de Maeztu Challenge.
  • Potential for high-impact contributions within the proposed research line.
  • Strategic use of relevant infrastructures and resources.

Reference Letters — Maximum: 20 points The following aspects will be assessed:

  • Strength and relevance of the recommendations.
  • Evidence of the applicant’s research capabilities, independence, and potential for future contributions.

2. Interview: maximum 20 points Applicants who score at least 50 points in the merit-based evaluation will be invited to an interview. The interview will be conducted in English and may take place online via a video conferencing platform. Format and Content

  • A presentation by the candidate: The presentation will last up to 20 minutes.
  • Applicants will present their professional profile, focusing on how it aligns with the position and the María de Maeztu Challenge.
  • They will also outline their vision for future scientific development and how they plan to contribute to the research environment.

Following the presentation, the Selection Committee may ask questions related to:

  • The applicant’s research background and achievements.
  • The proposed research statement.
  • Any other relevant aspects of the application.

Scoring Criteria — Maximum: 20 points

  • Up to 10 points for the alignment of the applicant’s profile with the objectives of the position.
  • Up to 10 points for the clarity, feasibility, and impact of the applicant’s future research vision.

A minimum of 10 points is required to pass the interview phase. Funding: These positions are financed by the State Agency for Research of the Spanish Ministry of Science, Innovation and Universities through the “Unit of Excellence María de Maeztu 04/2019-03/2031” awarded to the Institute of Cosmos Sciences, grant CEX2024-001451-M funded by MICIU/AEI/10.13039/501100011033. The Unit of Excellence Maria de Maeztu recognition has been awarded by the Spanish Government in 2025 for the third time to the ICCUB, as a center with a highly competitive strategic research programmes in the frontiers of knowledge.

Global Talent Ireland Call

Global Talent Ireland aims to attract exceptional mid-career and established researchers from across the globe to Ireland. Researchers funded through this programme are required to transfer their research activities from their current location to an Eligible Research Body in Ireland. Given its commitment to equality, diversity and inclusion, Research Ireland welcomes applications from women and those from historically underserved communities.  
  • Deadline for Expression of Interest: 28th August 2025
  • Deadline for full-proposal: October 2025
  • Duration: 6 years
  • Amount: €2.25M to 3.25M (direct costs)

The programme budget includes the resources to build a research team (e.g., staff, consumables and travel) to carry out high-impact, world-class research, and additional start-up costs to support the researcher’s move to Ireland.

The programme comprises two streams: Rising Stars and Research Leaders. High level details are outlined in the table below:

Career stage

Award duration

Research funding

Startup funding

Maximum budget request

Rising Star

5-15 years post-PhD

6 years

€1.5M

€0.75M

€2.25M

Research leader

16+ years post-PhD

6 years

€2.5M

€0.75M

€3.25M

Please find here full details.

PhD position on Teaching Einsteinian Physics at Schools, University of Western Australia

The Einstein-First project in the university of Western Australia is seeking PhD and Masters students with a background in modern physics (including quantum physics and relativity), strong interest in science communication, experience in science teaching and aptitude in quantitative and qualitative data analysis. Closing date: December 1st 2026.

Please find here full details and how to apply.

CDD researcher (M/F) : Ultra-dense matter equation of state and gravitational Waves, Caen, France

The determination of the equation of state and composition of ultra-dense matter from multi-messenger astrophysical observations remains a central challenge in nuclear physics and high-energy astrophysics. Within this context, the LuTH-Caen theory group, as part of the Virgo collaboration, itself part of the LIGO-Virgo-KAGRA consortium, has established a recognized expertise in the theoretical modeling of ultra-dense stellar matter and the development of advanced statistical methods for quantifying theoretical uncertainties and their impact on the confidence intervals of astronomical observables.

Application Deadline: March 27th 2025

This postdoctoral project aims to generate quantitative predictions for the key parameters governing the emission of detectable gravitational wave signals from compact objects, incorporating the uncertainties inherent in the underlying microphysics. Specifically, the successful candidate will focus on parameter estimation in one of two contexts: neutron star binary coalescence, either during the inspiral or post-merger phase, or the continuous gravitational waves emitted by isolated neutron stars.
Within this framework, the successful candidate will contribute to the interpretation of signals from past and ongoing LVK observational campaigns, as well as to the preparation for third-generation interferometers, including post-O5 and the Einstein Telescope. The research will specifically aim to constrain the microscopic properties of dense hadronic matter, such as the nuclear equation of state, and to identify potential signatures of deconfinement phase transitions.

Activities

The successful postdoctoral fellow will be responsible for maintaining and further developing the Bayesian analysis tools for equation-of-state inference within the LPC theory group. This work will be carried out in close collaboration with group members from GANIL and the Strasbourg Observatory, the latter being conducting numerical relativity simulations of post-merger remnants. Depending on the candidate’s previous research experience and interests, there may also be opportunities to contribute to the group’s theoretical developments related to the modeling of dense and superfluid matter in neutron stars. The candidate is expected to contribute to research activities and topics such as:

  • Development of the CUTER tool for the improvement of parameter estimation using microphysics informed equations of state, see https://zenodo.org/records/10781539
  • Numerical simulations for the physics case prospects of third generation interferometers
  • Theoretical modelling of the zero and finite temperature nuclear equation of state and its possible phase transitions, with both effective and microscopic models
  • Development and analysis of neutron star cooling simulations and applications to the measurable properties of the neutron star crust

Skills

The successful candidate must have a PhD in theoretical nuclear physics, gravitational wave data analysis or numerical hydrodynamics. Proficiency in scientific programming (C, C++, Python) and numerical simulations is expected. Familiarity with software development tools such as git and gitlab, while not essential, would be an advantage.

Work Context

The successful candidate will be assigned to the theory and phenomenology team, within the Corpuscular Physics Laboratory of Caen.
The team has a longstanding experience in theoretical nuclear modelling. Since 2020, it is part of the Virgo collaboration within a theoretical group including researchers from the astronomical observatory in Strasbourg, and the GANIL laboratory in Caen.
The LPC CAEN, with about 100 staff, is a joint research unit (UMR 6534) under the supervision of three institutions: the CNRS, the University of Caen Normandy (UCN) and the Ecole Nationale Supérieure d’Ingénieurs de Caen (ENSICAEN). It is located on Campus 2 of the University of Caen (Campus Côte de Nacre) and is part of the research park of ENSICAEN (www.lpc-caen.in2p3.fr/).

Please find here full details.