Tag: Second quantization

• Why We Need Quantum Field Theory: One-Particle Quantum Mechanics Is Incompatible with RelativityRelativity grafted onto one-particle quantum mechanics yields negative energies, a negative probability density and acausal propagation. Quantizing the field is the only way out.PhysicsQuantum Field TheoryGraduateQuantum field theorySecond quantizationKlein-Gordon equationAntiparticlesCausality~37 min