Avoiding the boson sign problem at finite chemical potential

Details Avoiding the boson sign problem at finite chemical potential Avoiding the boson sign problem at finite chemical potential

2006-09-21

arxiv.org/abs/hep-lat/0609037v1

PoSLAT2006:133,2006

Physics

High Energy Physics

High Energy Physics - Lattice

7 pages, 5 figures, talk presented at Lattice 2006 (High Temperature and Density)

Scientific paper

The usual path integral formulation for scalar particles at finite density
involves a sign problem, making numerical simulation impractical. We present
alternative methods free of this difficulty. We apply these approaches to phi^4
theory in 2+1 dimensions, presenting preliminary numerical results for physical
quantities in the vicinity of the phase transition in the T-mu plane.

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