Summary: STOCHASTIC QUANTIZATION
AT FINITE CHEMICAL POTENTIAL:
SIGN AND SILVER BLAZE PROBLEMS
Gert Aarts
Swansea University
ECT*, March 2009 ­ p.1
OUTLINE
sign problem at finite chemical potential
a revived approach: stochastic quantization
three QCD inspired models
relativistic Bose gas
the Silver Blaze problem is not a problem
ECT*, March 2009 ­ p.2
QCD AT FINITE µ
SIGN PROBLEM
fermion determinant is complex
[det M(µ)]
= det M(-µ)
avoid fluctuating sign?
simulations at µ = 0 or with | det M(µ)|

Source: Aarts, Gert - Department of Physics, University of Wales Swansea

Collections: Physics