Simulating QCD at finite density
Abstract
In this review, I recall the nature and the inevitability of the "sign problem" which plagues attempts to simulate lattice QCD at finite baryon density. I present the main approaches used to circumvent the sign problem at small chemical potential. I sketch how one can predict analytically the severity of the sign problem, as well as the numerically accessible range of baryon densities. I review progress towards the determination of the pseudo-critical temperature T_c(mu), and towards the identification of a possible QCD critical point. Some promising advances with non-standard approaches are reviewed.
- Publication:
-
arXiv e-prints
- Pub Date:
- May 2010
- DOI:
- 10.48550/arXiv.1005.0539
- arXiv:
- arXiv:1005.0539
- Bibcode:
- 2010arXiv1005.0539D
- Keywords:
-
- High Energy Physics - Lattice;
- Condensed Matter - Strongly Correlated Electrons
- E-Print:
- 23 pages, Plenary talk at the 27th International Symposium on Lattice Field Theory (Lattice 2009), Beijing, China, 25-31 July 2009