EXP Fellowships in Experimental Physics and Astrophysics

The Caltech Division of Physics, Mathematics and Astronomy offers a number of named Experimental Physics and Astrophysics Postdoctoral Prize Fellowships (EXP Fellowships). EXP Fellowships are for a three-year duration and to begin in the fall 2026, or a mutually agreeable date. The EXP program has been established to offer scientists, typically within a few years after receipt of their PhD, the opportunity to pursue innovative experimental research, including but not limited to Astrophysics, Atomic Molecular and Optical Physics, Biophysics, Condensed Matter Physics, Soft Condensed Matter Physics, Gravitational Physics (via the dedicated Braginsky/Whitcomb Fellowship), High Energy Physics, Low-Energy Particle Physics, Nuclear Physics, Quantum Information, or Cosmology. It is expected that this research will require the support and facilities of one of the established experimental groups at Caltech (accessible from this list). Prospective applicants are encouraged to contact faculty members to gauge mutual interest. In the case of astrophysics, only candidates with a focus on instrumentation and/or experimental laboratory work will be considered for EXP fellowships. Electronic copies of the curriculum vitae, publications list (refereed papers on top), and statement of research interests are required. The research statement should be no more than 5 pages, excluding references. The applicant is requested to ensure that at least three letters of recommendation are submitted on their behalf. ++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 years Salary: $85,000 in the first year Research fund: $10,000 per annum One-time allowance to assist with the move Annual vacations: 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 1, 2025: Deadline for applications, including reference letters Mid-December 2025 â End of February 2026: Offers View or update your application using the “Status” link after login

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