The one-flavor quark condensate and related problems
نویسنده
چکیده
I describe a recent calculation (by me, Hoffmann, Liu, and Schaefer) of the chiral condensate in one-flavor QCD using numerical simulations with overlap fermions. The condensate is extracted by fitting the distribution of low lying eigenmodes of the Dirac operator in sectors of fixed topological charge to the predictions of Random Matrix Theory. Our results are in excellent agreement with estimates from the orientifold large-N expansion. Much interesting physics surrounds this calculation, which I will highlight.
منابع مشابه
QCD Quark Condensate from SUSY and the Orientifold Large-N Expansion
We estimate the quark condensate in one-flavor massless QCD from the known value of the gluino condensate in SUSY Yang-Mills theory using our newly proposed “orientifold” large-N expansion. The numerical result for the quark condensate renormalized at the scale 2 GeV is then given as a function of αs(2 GeV) and of possible corrections from sub-leading terms. Our value can be compared with the q...
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