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arXiv · 1109.5849

Low-energy theorems of QCD and bulk viscosity at finite temperature and baryon density in a magnetic field

N. O. Agasian
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Abstract

The nonperturbative QCD vacuum at finite temperature and a finite baryon density in an external magnetic field is studied. Equations relating nonperturbative condensates to the thermodynamic pressure for $T\neq 0$, $\mu_q \neq 0$ and $H\neq 0$ are obtained, and low-energy theorems are derived. A bulk viscosity $\zeta(T, \mu, H)$ is expressed in terms of basic thermodynamical quantities describing the quark-gluon matter at $T\neq 0$, $\mu_q \neq 0$, and $H\neq 0$. Various limiting cases are also considered.

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N. O. Agasian. 2011-09-27. Low-energy theorems of QCD and bulk viscosity at finite temperature and baryon density in a magnetic field. https://doi.org/10.1134/s0021364012040029

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