Progress on a canonical finite density algorithm

被引:5
作者
Alexandru, A [1 ]
Faber, M
Horváth, I
Liu, KF
机构
[1] Univ Kentucky, Dept Phys & Astron, Lexington, KY 40506 USA
[2] Australian Univ, Inst Atom, Div Nucl Phys, A-1040 Vienna, Austria
关键词
D O I
10.1016/j.nuclphysbps.2004.11.377
中图分类号
O412 [相对论、场论]; O572.2 [粒子物理学];
学科分类号
摘要
We test the finite density algorithm in the canonical ensemble which combines the HMC update with the accept/reject step according to the ratio of the fermion number projected determinant to the unprojected one as a way of avoiding the determinant fluctuation problem. We report our preliminary results on the Polyakov loop in different baryon number sectors which exhibit deconfinement transitions on small lattices. The largest density we obtain around T-c is an order of magnitude larger than that of nuclear matter. From the conserved vector current, we calculate the quark number and verify that the mixing of different baryon sectors is small.
引用
收藏
页码:517 / 522
页数:6
相关论文
共 13 条
[1]   Partial-global stochastic Metropolis update for dynamical smeared link fermions [J].
Alexandru, A ;
Hasenfratz, A .
PHYSICAL REVIEW D, 2002, 66 (09)
[2]   New possibilities for QCD at finite density [J].
Alford, M .
NUCLEAR PHYSICS B-PROCEEDINGS SUPPLEMENTS, 1999, 73 :161-166
[3]   Imaginary chemical potential and finite fermion density on the lattice [J].
Alford, M ;
Kapustin, A ;
Wilczek, F .
PHYSICAL REVIEW D, 1999, 59 (05)
[4]   BINDING OF HOLES IN THE HUBBARD-MODEL [J].
DAGOTTO, E ;
MOREO, A ;
SUGAR, RL ;
TOUSSAINT, D .
PHYSICAL REVIEW B, 1990, 41 (01) :811-814
[5]   The quenched limit of lattice QCD at non-zero baryon number [J].
Engels, J ;
Kaczmarek, O ;
Karsch, F ;
Laermann, E .
NUCLEAR PHYSICS B, 1999, 558 (1-2) :307-326
[6]   TRIALITY IN QCD AT ZERO AND FINITE-TEMPERATURE - A NEW DIRECTION [J].
FABER, M ;
BORISENKO, O ;
ZINOVJEV, G .
NUCLEAR PHYSICS B, 1995, 444 (03) :563-573
[7]  
FABER M, 1995, NUCL PHYS B, P484, DOI 10.1016/0920-5632(95)00287-J
[8]   CANONICAL ENSEMBLES AND NONZERO DENSITY QUANTUM CHROMODYNAMICS [J].
HASENFRATZ, A ;
TOUSSAINT, D .
NUCLEAR PHYSICS B, 1992, 371 (1-2) :539-549
[9]   The Kentucky noisy Monte Carlo algorithm for Wilson dynamical fermions -: art. no. 074505 [J].
Joó, B ;
Horváth, I ;
Liu, KF .
PHYSICAL REVIEW D, 2003, 67 (07)
[10]  
KRATOCHVILA S, HEPLAT0309146, P94508