Full simulation of chiral Random Matrix Theory at non-zero chemical potential by Complex Langevin

Autor:	Mollgaard, A., Splittorff, K.
Rok vydání:	2014
Předmět:	High Energy Physics - Lattice High Energy Physics - Theory
Zdroj:	Phys. Rev. D 91, 036007 (2015)
Druh dokumentu:	Working Paper
DOI:	10.1103/PhysRevD.91.036007
Popis:	It is demonstrated that the complex Langevin method can simulate chiral random matrix theory at non-zero chemical potential. The successful match with the analytic prediction for the chiral condensate is established through a shift of matrix integration variables and choosing a polar representation for the new matrix elements before complexification. Furthermore, we test the proposal to work with a Langevin-time dependent quark mass and find that it allows us to control the fluctuations of the phase of the fermion determinant throughout the Langevin trajectory. Comment: 16 pages, 6 figures
Databáze:	arXiv
Externí odkaz:	http://arxiv.org/abs/1412.2729 Zobrazit plný text záznamu View this record from Arxiv