Monday, August 5, 2013

1308.0487 (Vivek M. Vyas et al.)

On Berezinskii-Kosterlitz-Thouless phase transition and universal
breathing mode in two dimensional photon gas

Vivek M. Vyas, Prasanta K. Panigrahi, J. Banerji
A system of two dimensional photon gas has recently been realized experimentally. It is pointed out that this setup can be used to observe a universal breathing mode of photon gas. It is shown that a modification in the experimental setup would open up a possibility of observing the Berezinskii-Kosterlitz-Thouless (BKT) phase transition in such a system. It is shown that the universal jump in the superfluid density of light in the output channel can be used as an unambiguous signature for the experimental verification of the BKT transition.
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