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arXiv · 1710.05820

Quark Condensate in a Weak Magnetic Field

Christoph P. Hofmann
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Abstract

The low-temperature representation for the quark condensate in a weak magnetic field $H$ is known up to two-loop order. Remarkably, at one-loop order, the published series for the quark condensate in the chiral limit and $H \ll T^2$ are inconsistent. Using an alternative representation for the kinematical Bose functions, we derive the series to arbitrary order in $H/T^2$, and also determine which of the published results is correct.

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Christoph P. Hofmann. 2017-10-16. Quark Condensate in a Weak Magnetic Field. https://doi.org/10.1103/physrevd.99.014030

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