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

) will contain a non-zero number of particles according to the second observer. 3. Key Phenomena

is a linear combination of both the old annihilation and creation operators: Quantum Field Theory in Curved Spacetime: Quant...

Quantum Field Theory in Curved Spacetime: Quantized Fields and Semiclassical Gravity ) will contain a non-zero number of particles

: General curved backgrounds lack global Poincaré invariance and time-translation symmetry, making it impossible to define a unique, preferred vacuum state. and quantum mechanics:

This framework predicts several landmark effects that bridge the gap between thermodynamics, gravity, and quantum mechanics: