The fermion sign problem at finite density, and large Nc orbifold equivalence

A. Cherman, B. C. Tiburzi

Research output: Contribution to conferencePaperpeer-review

Abstract

The study of QCD at finite baryon density is severely hampered by the so-called fermion sign problem. As a result, we have no known first principles approach to study nuclear matter, or neutron stars from QCD. On the surface, the large Nc limit does not seem to simplify matters. In this limit, however, one can exploit dualities that exist between strongly coupled gauge theories. Our focus will be on some rather novel orbifold equivalences that have recently been discovered at finite density. These equivalences relate strongly coupled theories plagued by a sign problem, to strongly coupled theories free of sign problems. As a result, such dualities give deeper insight into the nature of the sign problem and possibly provide a way to simulate QCD at finite density in the large Nc limit.

Original languageEnglish (US)
StatePublished - 2011
Externally publishedYes
Event2011 Meeting of the Division of Particles and Fields of the American Physical Society, DPF 2011 - Providence, United States
Duration: Aug 9 2011Aug 13 2011

Conference

Conference2011 Meeting of the Division of Particles and Fields of the American Physical Society, DPF 2011
CountryUnited States
CityProvidence
Period8/9/118/13/11

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