论文标题
时间依赖系统中的光子数量保护
Photon number conservation in time dependent systems
论文作者
论文摘要
一般而言，时间依赖的系统不会保存光子，也不保留能量。但是，当奇偶校验时间对称性时，麦克斯韦方程有时可以节省光子数和能量。在这里，我们表明，光子保护是更广泛的适用定律，在违反能源保护的情况下，可以持有进一步的启示，从而进一步阐明了先前论文中确定的放大机制，这是攀登频梯的保守光子的过程。
Time dependent systems in general do not conserve photons nor do they conserve energy. However when parity time symmetry holds Maxwells equations can sometimes both conserve photon number and energy. Here we show that photon conservation is the more widely applicable law which can hold in circumstances where energy conservation is violated shedding further light on an amplification mechanism identified in previous papers as a process of conserved photons climbing a frequency ladder.
