A scheme to observe universal breathing mode and Berezinskii-Kosterlitz-Thouless phase transition in a two-dimensional photon gas

作者：Vyas Vivek M; Panigrahi Prasanta K^*; Banerji J

来源：Physics Letters, Section A: General, Atomic and Solid State Physics , 2014, 378(20): 1434-1437.

DOI：10.1016/j.physleta.2014.02.035

• Bose-Einstein condensation
• Berezinskii-Kosterlitz-Thouless phase
• transition

A system of two-dimensional photon gas has recently been realized experimentally. We show that this setup can be used to observe a universal breathing mode of photon gas and a modification in the experimental setup would open up a possibility of observing the Berezinskii-Kosterlitz-Thouless (BKT) phase transition in such a system. Furthermore, 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.

• 出版日期2014-4-4