Abstract
The nonperturbative QCD vacuum at finite temperature and baryon density in an external magnetic field has been studied. Relations between the nonperturbative condensates and the thermodynamic pressure at T ≠ 0, μ q ≠ 0, and H ≠ 0 have been obtained and the low-energy theorems have been derived. Bulk viscosity ζ(T, μ, H) has been described in terms of the main thermodynamic quantities characterizing the quark-gluon matter at T ≠ 0, μq ≠ 0, and H ≠ 0. Various limiting cases have been discussed.
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Original Russian Text © N.O. Agasian, 2012, published in Pis’ma v Zhurnal Eksperimental’noi i Teoreticheskoi Fiziki, 2012, Vol. 95, No. 4, pp. 187–191.
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Agasian, N.O. Low-energy theorems of QCD and bulk viscosity at finite temperature and baryon density in a magnetic field. Jetp Lett. 95, 171–175 (2012). https://doi.org/10.1134/S0021364012040029
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DOI: https://doi.org/10.1134/S0021364012040029