Sign problem via imaginary chemical potential

K. Splittorff*, B. Svetitsky

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review


We calculate an analogue of the average phase factor of the staggered fermion determinant at imaginary chemical potential. Our results from the lattice agree well with the analytical predictions in the microscopic regime for both quenched and phase-quenched QCD. We demonstrate that the average phase factor in the microscopic domain is dominated by the lowest-lying Dirac eigenvalues.

Original languageEnglish
Article number114504
JournalPhysical Review D - Particles, Fields, Gravitation and Cosmology
Issue number11
StatePublished - 28 Jun 2007


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