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arXiv · 2001.08609

On lower bound of relaxation time for massless fluid in presence of magnetic field

Sarthak Satapathy·Jayanta Dey·Prashant Murmu·Sabyasachi Ghosh
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Abstract

Due to lowest possible quantum fluctuation, shear viscosity to entropy density ratio never reach to zero, rather has some lower bound (0.08 approx). Here, we have attempted to link our calculation, based on relaxation time approximation for massless relativistic fluid, with that value and interestingly found a lower and also an upper limit of relaxation time.

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Sarthak Satapathy, Jayanta Dey, Prashant Murmu, Sabyasachi Ghosh. 2020-01-23. On lower bound of relaxation time for massless fluid in presence of magnetic field. https://arxiv.org/abs/2001.08609

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