标题： 随机时空中的波传播：局域化、增强和粒子产生 显示英文标题

标题： Wave Propagation in Stochastic Spacetimes: Localization, Amplification and Particle Creation

摘要： 我们研究与在Robertson-Walker宇宙中电磁波传播以及具有少量度规随机性的Schwarzschild时空相关的新型效应。 我们发现，在具有时间不变度规随机性的Robertson-Walker宇宙中会发生电磁波的局域化，而时间依赖的度规随机性会引发粒子产生率的指数不稳定性。 对于Schwarzschild度规，时间不变的随机性由于黑洞外部波的多次散射会降低霍金辐射的总光度，并导致事件视界波动，从而引起霍金温度的波动。 显示英文摘要

摘要： Here we study novel effects associated with electromagnetic wave propagation in a Robertson-Walker universe and the Schwarzschild spacetime with a small amount of metric stochasticity. We find that localization of electromagnetic waves occurs in a Robertson-Walker universe with time-independent metric stochasticity, while time-dependent metric stochasticity induces exponential instability in the particle production rate. For the Schwarzschild metric, time-independent randomness can decrease the total luminosity of Hawking radiation due to multiple scattering of waves outside the black hole and gives rise to event horizon fluctuations and thus fluctuations in the Hawking temperature.