Fisher's zeros, complex RG flows and confinement in LGT models

Details Fisher's zeros, complex RG flows and confinement in LGT models Fisher's zeros, complex RG flows and confinement in LGT models

2011-12-12

arxiv.org/abs/1112.2734v1

Physics

High Energy Physics

High Energy Physics - Lattice

7 pages, 8 figures, Poster presented at the XXIX International Symposium on Lattice Field Theory (Lattice 2011), July 10-16, 2

Scientific paper

The zeros of the partition function in the complex beta plane (Fisher's zeros) play an important role in our understanding of phase transitions and RG flows. Recently, we argued that they act as gates or separatrices for complex RG flows. Using histogram reweighting to construct the density of states, we calculate the Fisher's zeros for pure gauge SU(2) and U(1) on L^4 lattices. For SU(2), these zeros appear to move almost horizontally when the volume increases. They stay away from the real axis which indicates a confining theory at zero temperature. We discuss the effect of an adjoint term on these results. In contrast, using recent multicanonical simulations for the U(1) model for L up to 8 we find that the zeros pinch the real axis near beta =1.0113. Preliminary results concerning U(1) at larger volumes, SU(3) with 3 light flavors and plans to delimit the boundary of the conformal window are briefly discussed.

Affiliated with

Also associated with

No associations

Rating

Fisher's zeros, complex RG flows and confinement in LGT models 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 Fisher's zeros, complex RG flows and confinement in LGT models, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Fisher's zeros, complex RG flows and confinement in LGT models will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-485273