论文标题
在任意仪表式物质腔模型中的光子凝结理论
Theory of photon condensation in an arbitrary gauge condensed matter cavity model
论文作者
论文摘要
我们得出了一个任意规定的标准，在该标准下，电磁场内的冷凝物可能会过渡到光子冷凝相。通过选择仅在空间变化的场中才能发生光子凝结的库仑规程，可以恢复先前的结果，并可以解释为磁不稳定性。我们直接证明了我们的描述的规格不变性，但是由于物质和光子是衡量概念的概念，我们更普遍地发现，光子凝结可能发生在空间均匀的场内，并且相对不稳定性既具有磁性和电气的相对程度，又取决于纯电磁。
We derive an arbitrary-gauge criterion under which condensed matter within an electromagnetic field may transition to a photon condensed phase. Previous results are recovered by selecting the Coulomb-gauge wherein photon condensation can only occur for a spatially-varying field and can be interpreted as a magnetic instability. We demonstrate the gauge-invariance of our description directly, but since matter and photons are gauge-relative concepts we find more generally that photon condensation can occur within a spatially uniform field, and that the relative extent to which the instability is both magnetic and electric versus purely magnetic depends on the gauge.
