Imaginary chemical potentials and the phase of the fermionic determinant

Details Imaginary chemical potentials and the phase of the fermionic determinant Imaginary chemical potentials and the phase of the fermionic determinant

2007-07-13

arxiv.org/abs/0707.1987v1

Phys.Rev.D76:074501,2007

Physics

High Energy Physics

High Energy Physics - Lattice

6 pages, 6 figures

Scientific paper

10.1103/PhysRevD.76.074501

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.

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