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The Quark and Gluon Condensates and Low-Energy QCD Theorems in a Magnetic Field
Agasian, N O, Shushpanov, I A
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Abstract
The low-energy QCD theorems are generalized in the presence of a constant magnetic field H. Two-loop approximation for the vacuum energy density in the framework of the chiral perturbation theory was obtained and the quark and gluon condensates were found as the functions of H.