Sepehr Ghazi Nezami

Physicist and researcher in quantum information theory. BSc in physics, Sharif University of Technology (2009-2013); PhD in physics, Stanford University (2013-2019), advised by Patrick Hayden. Postdoctoral researcher at Caltech's Institute for Quantum Information and Matter (IQIM), Preskill Group (2019-2022). LinkedIn-derived enrichment and his Caltech IQIM page list him as a Researcher at Renaissance Technologies (rentec.com), a systematic quantitative hedge fund, based in East Setauket, New York, from 2022. Earlier roles include research internships/studentships at X (the moonshot factory), Microsoft, and CERN. Represented Iran at the 2009 International Mathematical Olympiad, winning a silver medal.

Notes7

• Quant employment verification: CONFIRMED. LinkedIn enrichment (an index-derived source, not independent primary confirmation) reports a current role as Researcher at Renaissance Technologies LLC since 2022, based in East Setauket, New York. Renaissance Technologies (rentec.com) is a systematic/quantitative hedge fund (the Medallion Fund), so the role is in quantitative finance. Identity is supported: the Caltech IQIM profile independently names 'Sepehr Ghazi Nezami' with employer 'Renaissance Technologies', tying that employer to the same IMO 2009 / Stanford PhD person. This rests on a LinkedIn-derived index record plus the Caltech profile page; no independent RenTech-side primary page (e.g. a RenTech-authored bio) has yet been read, so treat the current-title/start-date detail as index-only.Sep 17, 2026
• Served as an IQIM Postdoctoral Scholar at Caltech (Preskill Group), listed as an alumnus; his Caltech IQIM profile lists his current employer as Renaissance Technologies and publishes the email [contact omitted].2022
• Employer cross-check: the Caltech IQIM page (an institute page, independent of LinkedIn) lists 'Renaissance Technologies' as his employer and marks him an IQIM Postdoctoral Scholar Alumnus, corroborating that the Stanford-PhD/Iran-IMO person is the one at RenTech rather than a namesake.2022
• PhD in Physics, Stanford University, defended 23 May 2019; research advisor Patrick Hayden; thesis 'Representation theory, Randomness, and Quantum Information Science'.May 23, 2019
• Career-timeline note: research internships at Microsoft (2018) and X, the moonshot factory (2019) sit inside his Stanford PhD (2013-2019), while the CERN summer studentship (2012) falls in his Sharif undergraduate period; the only quantitative-finance role in the record is the post-PhD Renaissance Technologies position.Sep 17, 2026
• Represented Iran at the International Mathematical Olympiad (IMO) 2009, earning a silver medal with a total of 24 points and an individual rank of 130/565.Jul 2009
• Co-authored quantum-information papers including 'Multipartite Entanglement in Stabilizer Tensor Networks' (arXiv 1608.02595), 'Spacetime replication of continuous variable quantum information' (arXiv 1601.02544), and 'Permanent of random matrices from representation theory' (arXiv 2104.06423), with frequent collaborators Patrick Hayden, Michael Walter, Grant Salton, Adam R. Brown, and Ning Bao.Apr 2021