A Finite Baryon Density Algorithm

2003/12/17 by Keh-Fei Liu, Liu, Keh-Fei · 1 citation
Computer Science · Physics and Astronomy · #Algorithms and Data Compression #FOS: Physical sciences #High Energy Physics - Lattice (hep-lat) #hep-lat

paper · pdf · doi:10.48550/arxiv.hep-lat/0312027

Talk given at `Third International Workshop on QCD and Numerical Analysis', Edinburgh, June 2003

arxiv created 2003/12/17 · openalex publication_date 2003/12/17 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28

Abstract

I will review the progress toward a finite baryon density algorithm in the canonical ensemble approach which entails particle number projection from the fermion determinant. These include an efficient Padé-Z₂ stochastic estimator of the Tr log of the fermion matrix and a Noisy Monte Carlo update to accommodate unbiased estimate of the probability. Finally, I will propose a Hybrid Noisy Monte Carlo algorithm to reduce the large fluctuation in the estimated Tr log due to the gauge field which should improve the acceptance rate. Other application such as treating u and d as two separate flavors is discussed.

Cited by

• Critical point of QCD at finite T and , lattice results for physical quark masses

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