From cold atoms to nuclei and neutron stars

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Date: December 2, 2021
Time: 3:30 p.m. - 5:00 p.m.
Location: Zoom
Category: Seminar


Progress in atomic physics has enabled the experimental realization of a "Unitary Fermi Gas". This is a system of non-relativistic spin 1/2 fermions interacting via a potential tuned to zero range but infinite scattering length. The emergent quantum many body system is a scale invariant, strongly correlated quantum fluid. It is linked, by universality, to other systems in nature, in particular the neutron liquid that forms the outer layer of a neutron star. We will explain how studies of the unitary gas inform our understanding of  the equation of state of neutron matter, short range correlations in nuclei, and the transport properties of nuclear matter.


Short Bio:

THOMAS SCHAEFER is the Wesley O. Doggett Distinguished Professor of Physics at North Carolina State University, a member of the Nuclear Theory Group at North Carolina State, and a former fellow at the RIKEN-BNL Research Center. He received his bachelor’s in physics at the University of Giessen in 1989 and his Ph.D. from the University of Regensburg in 1992. His work is focused on QCD, many body effects in atomic, nuclear, and particle physics, as well as transport theory. From 1998-1999 he was a member of the Institute for Advanced Study in Princeton before joining the faculty at Stony Brook University as an assistant professor in 2000. He was promoted to the rank of associate professor in 2003 and joined the faculty of North Carolina State University the same year. He was promoted to full professor in 2006. From 2000-2004, he was also a fellow at the Riken-BNL research center at BNL. Dr. Schaefer received a Fedor Lynen Fellowship from the Alexander von Humboldt Foundation in 1992, an Outstanding Junior Investigator Award from DOE in 2002, and was elected a fellow of the APS in 2006. He served as an Associate Editor of Physical Review Letter, as a member of the National Academies Study of US-based Electron-Ion Collider Science, and as a member of NSAC, the Nuclear Science Advisory Committee. He is currently the Nuclear Physics Editor for Reviews of Modern Physics.


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Topic: Wayne State Physics and Astronomy Colloquium

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Chun Shen


December 2021