Quantum Field Theory in Curved Spacetime

Quantum Field Theory in Curved Spacetime combines two fundamental theories: quantum mechanics and general relativity. It studies how quantum fields, which describe particles, behave in a gravitational environment that is not flat, like around a planet or black hole. This approach explores phenomena like particle creation in strong gravitational fields and the interplay between the quantum world and the fabric of spacetime itself. Essentially, it investigates how gravity influences the behavior of matter and energy at the smallest scales, enriching our understanding of the universe's fundamental workings.