Stochastic quantization at nonzero chemical potential

Gert Aarts (Swansea University) , Ion-Olimpiu Stamatescu (Heidelberg University , FEST , Heidelberg)

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classification ✦ hep-lat hep-phnucl-th

keywords chemicalpotentialquantizationstochasticappearscomplexdifficultdynamics

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Lattice QCD at finite chemical potential is difficult due to the sign problem. We use stochastic quantization and complex Langevin dynamics to study this issue. First results for QCD in the hopping expansion are encouraging. U(1) and SU(3) one link models are used to gain further insight into why the method appears to be successful.

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Stochastic quantization at nonzero chemical potential

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