Topic: Theoretical physics

Postdoctoral fellowships for recent PhDs pursuing independent research in fundamental theoretical physics. Areas include quantum matter, cosmology, quantum fields and strings, mathematical physics, quantum foundations, gravity, quantum information and particle physics, including intersections with AI. Fellows receive research and travel support, health coverage and mentoring; some appointments may be shared with partner institutions. Starting annual salary is CAD 79,000. Review begins on 6 November 2026 and applications continue until positions are filled.

ICTP-SAIFR at IFT-Unesp, São Paulo, invites applications across theoretical physics. Submit biographical information, a publication CV, research proposal and referee contacts through the host’s application page. The specific FAPESP notice gives 8 October 2026; the broader host page says review begins in October and continues until filled.

MIT’s Center for Theoretical Physics, a Leinweber Institute, seeks postdoctoral fellows starting September 1, 2027. The broad search covers quantum field theory, gravity, strings, cosmology, particle and nuclear theory, strong interactions and quantum information, including connections across these fields. Independent research directions are welcome; close matching to a faculty programme is not required. Candidates must first be nominated by a faculty member or equivalent senior industry researcher by October 9, 2026 at 11:59 p.m. US Eastern Time. Nominees then apply through AcademicJobsOnline

Develop and apply quantum resource theory for Extended Wigner’s Friend scenarios, where the presence of another observer can affect measurement outcomes. The work involves analytical quantum information and probability theory, together with numerical simulation, and relates to Bell nonlocality. This FAPESP-funded doctoral position is expected to start in March 2027. Apply by 16 November 2026 with a CV, a motivation letter of up to two pages and contact information for two academic referees, following the official advertisement.

The Simons Foundation invites proposals to organize new symposium series in mathematics and theoretical physics, including theoretical computer science. Selected series may comprise up to three weeklong meetings with travel, lodging, and meals covered for participants, creating sustained time for collaboration on timely research problems.

The Simons Foundation invites letters of intent for ambitious collaborations addressing fundamental questions of major importance in mathematics, theoretical physics, or theoretical computer science. Awards support multi-investigator teams across career stages for four years, with up to three new collaborations expected to begin in January 2028.

Theoretical postdoctoral positions investigating hybrid quantum light-matter systems, including quantum-gas cavity QED and polaritonic chemistry; requires a PhD in physics with expertise in quantum optics and open quantum systems. Applications reviewed on a rolling basis until the hard deadline.