relativistic quantum field theory

Relativistic quantum field theory (RQFT) is a branch of physics that combines the principles of quantum mechanics with Einstein's theory of relativity. It describes how particles, like electrons and photons, behave and interact in a way that accounts for their wave-like properties and the effects of moving at high speeds. In RQFT, particles are viewed as excitations in underlying fields that pervade space, allowing for a more unified understanding of fundamental forces and particles. This framework is essential for describing phenomena in high-energy physics, such as those observed in particle accelerators and during cosmic events.