1112.4086 (Giorgio Torrieri)

Viscosity of an ideal relativistic quantum fluid: A perturbative study    [PDF]

Giorgio Torrieri

We show that a quantized ideal fluid will generally exhibit a small but
non-zero viscosity due to the backreaction of quantum soundwaves on the
background. We use an effective field theory expansion to estimate this
viscosity to first order in perturbation theory. We discuss our results, and
whether this estimate can be used to obtain a more model-independent estimate
of the "quantum bound" on the viscosity of physical systems

View original: http://arxiv.org/abs/1112.4086