Breakdown of staggered fermions at nonzero chemical potential

Details Breakdown of staggered fermions at nonzero chemical potential Breakdown of staggered fermions at nonzero chemical potential

2006-02-20

arxiv.org/abs/hep-lat/0602026v6

Phys.Rev.D74:071501,2006

Physics

High Energy Physics

High Energy Physics - Lattice

6 pages RevTeX, 2 figures. Returning to v5 after erroneous replacement. Apologies

Scientific paper

10.1103/PhysRevD.74.071501

The staggered fermion determinant is complex when the quark chemical potential mu is nonzero. Its fourth root, used in simulations with dynamical fermions, will have phase ambiguities that become acute when Re mu is sufficiently large. We show how to resolve these ambiguities, but our prescription only works very close to the continuum limit. We argue that this regime is far from current capabilities. Other procedures require being even closer to the continuum limit, or fail altogether, because of unphysical discontinuities in the measure. At zero temperature the breakdown is expected when Re mu is greater than approximately half the pion mass. Estimates of the location of the breakdown at nonzero temperature are less certain.

Affiliated with

Also associated with

No associations

Rating

Breakdown of staggered fermions at nonzero chemical potential does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Breakdown of staggered fermions at nonzero chemical potential, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Breakdown of staggered fermions at nonzero chemical potential will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-520451