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Thermodynamic properties of coherent photons in self-focusing nonlinear waveguides
Journal of Nonlinear Optical Physics & Materials ( IF 2.7 ) Pub Date : 2019-05-03 , DOI: 10.1142/s0218863519500061
Ze Cheng 1
Affiliation  

We study the thermodynamic properties of coherent photons in self-focusing nonlinear waveguides. The equation of the superfluid state of photons has been derived. There is a transition temperature [Formula: see text], above which the photon gas is in the coherent state, but below which the photon gas is in the superfluid state. At [Formula: see text], the photon system undergoes a first-order phase transition from the coherent to the superfluid state. To determine the fugacity [Formula: see text] and the transition temperature [Formula: see text] of the photon gas, we numerically solve the equation of the superfluid state of photons. The fugacity [Formula: see text] is a monotonically decreasing function of temperature [Formula: see text] and light intensity [Formula: see text]. The transition temperature [Formula: see text] is a monotonically decreasing function of light intensity [Formula: see text].

中文翻译:

自聚焦非线性波导中相干光子的热力学性质

我们研究了自聚焦非线性波导中相干光子的热力学性质。推导出光子超流体状态方程。有一个转变温度[公式:见正文],高于该温度光子气体处于相干状态,但低于该温度光子气体处于超流体状态。在[公式:见正文]处,光子系统经历了从相干态到超流体态的一级相变。为了确定光子气体的逸度[公式:见正文]和转变温度[公式:见正文],我们对光子超流体态方程进行了数值求解。逸度[公式:见正文]是温度[公式:见正文]和光强[公式:见正文]的单调递减函数。转变温度[公式:
更新日期:2019-05-03
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