COOKIES: By using this website you agree that we can place Google Analytics Cookies on your device for performance monitoring. |

University of Cambridge > Talks.cam > Lattice field theory informal seminars > The fermion sign problem and large N orbifold equivalence

## The fermion sign problem and large N orbifold equivalenceAdd to your list(s) Download to your calendar using vCal - Aleksey Cherman (DAMTP, University of Cambridge)
- Friday 19 November 2010, 14:15-15:15
- MR11 (Malcolm Room), Pavilion B, DAMTP, CMS.
If you have a question about this talk, please contact M.Wingate. I will discuss a recent proposal that may give a way to study the finite-density physics of large N QCD on the lattice, by using some special properties of the large N limit to dodge the fermion sign problem in large N QCD . The proposal is based on the observation that SO(Nc) gauge theory with Nf fundamental Dirac fermions does not have a sign problem at finite baryon number chemical potential μB. One can thus use lattice Monte Carlo simulations to study this theory at finite density. The relevance of this to large N QCD , an SU(N) gauge theory, is that a wide class of observables in the SO(Nc) theory coincide with observables in QCD in the large N limit, as can be shown using the technique of large Nc orbifold equivalence. I will argue that the orbifold equivalence between the two theories continues to hold at μB ≠ 0 provided one modifies the SO(Nc) theory in a certain way. This opens up the prospect of learning about QCD at μB ≠ 0 using lattice studies of the SO(Nc) theory. This talk is part of the Lattice field theory informal seminars series. ## This talk is included in these lists:- All CMS events
- CMS Events
- DAMTP info aggregator
- Interested Talks
- Lattice field theory informal seminars
- MR11 (Malcolm Room), Pavilion B, DAMTP, CMS
- bld31
Note that ex-directory lists are not shown. |
## Other listsBHRU Annual Lecture 2015 CRUK CI Seminars Special Seminar## Other talksCGHR Practitioner Series: Andrea Coomber, JUSTICE Propaganda porcelain: The mirror of the Russian revolution and its consequences Mapping laboratory reports for molecular genetic testing to the National Cancer Registration and Analysis Service (NCRAS) The MMHT view of the proton New methods for genetic analysis Development of machine learning based approaches for identifying new drug targets |