Bose-Einstein condensation in relativistic plasma. (arXiv:1908.04402v1 [physics.plasm-ph])
<a href="http://arxiv.org/find/physics/1/au:+Prakapenia_M/0/1/0/all/0/1">M. A. Prakapenia</a>, <a href="http://arxiv.org/find/physics/1/au:+Vereshchagin_G/0/1/0/all/0/1">G. V. Vereshchagin</a>

The phenomenon of Bose-Einstein condensation is traditionally associated with
and experimentally verified for low temperatures: either of nano-Kelvin scale
for alkali atoms [1-3] or room temperatures for quasi-particles [4,5] or
photons in two dimensions [6]. Here we demonstrate out of first principles that
for certain initial conditions non-equilibrium plasma at relativistic
temperatures of billions of Kelvin undergoes condensation, predicted by
Zeldovich and Levich in their seminal work [7]. We determine the necessary
conditions for the onset of condensation and discuss the possibilities to
observe such a phenomenon in laboratory and astrophysical conditions.

The phenomenon of Bose-Einstein condensation is traditionally associated with
and experimentally verified for low temperatures: either of nano-Kelvin scale
for alkali atoms [1-3] or room temperatures for quasi-particles [4,5] or
photons in two dimensions [6]. Here we demonstrate out of first principles that
for certain initial conditions non-equilibrium plasma at relativistic
temperatures of billions of Kelvin undergoes condensation, predicted by
Zeldovich and Levich in their seminal work [7]. We determine the necessary
conditions for the onset of condensation and discuss the possibilities to
observe such a phenomenon in laboratory and astrophysical conditions.

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