Quantum Field Theory In Curved Spacetime: Quant... Page

: An observer accelerating through a Minkowski vacuum will perceive it as a thermal bath of particles at a temperature proportional to their acceleration.

This framework predicts several landmark effects that bridge the gap between thermodynamics, gravity, and quantum mechanics: Quantum Field Theory in Curved Spacetime: Quant...

is a linear combination of both the old annihilation and creation operators: : An observer accelerating through a Minkowski vacuum

In flat (Minkowski) spacetime, Poincaré invariance provides a unique vacuum state and a global definition of "particles". In curved spacetime, these "crutches" disappear: these "crutches" disappear: