Acceierating reference frame for electromagnetic waves in a rapidly growing plasma: Unruh radiation and the dynamic Casimir effect

In 1974, Hawking showed1 that black holes can evaporate by the emission of low-temperature thermal radiation, now named Hawking radiation. Shortly thereafter, a closely related effect called Unruh radiation became apparent. According to Unruh2 and Davies,2 observers of the electromagnetic field in an accelerating reference frame should see thermal radiation at a temperature T