Imaginary chemical potentials and the phase of the fermionic determinant

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A numerical technique is proposed for an efficient numerical determination of the average phase factor of the fermionic determinant continued to imaginary values of the chemical potential. The method is tested in QCD with eight flavors of dynamical staggered fermions. A direct check of the validity of analytic continuation is made on small lattices and a study of the scaling with the lattice volume is performed.
6 pages, 6 figures

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High Energy Physics - Lattice

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http://salesiana.dossiersoluciones.com/handle/123456789/193119

Consulte el texto completo en el siguiente enlace:

https://arxiv.org/abs/0707.1987
 http://arxiv.org/abs/0707.1987
 Phys.Rev.D76:074501,2007
 doi:10.1103/PhysRevD.76.074501

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arXiv