Coherent states

Coherent states are specific quantum states that closely resemble classical harmonic oscillators, like a swinging pendulum. They represent a balance between particle-like and wave-like behavior in quantum mechanics. In practical terms, coherent states are used to describe light waves, especially in laser physics, where the light maintains a consistent phase and amplitude over time. This stability makes coherent states useful for applications in telecommunications and quantum computing, as they allow for clearer signals and more efficient information processing. Essentially, coherent states bridge the gap between classical and quantum descriptions of physical systems.