Nonlinear Quantum Optics
Before diving into nonlinear quantum optics, let’s understand nonlinear optics in general. Light usually behaves linearly in most materials—meaning that if you double the input light, you get double the….
Tag: quantum optics
Quantum Coherence in Optics
To understand quantum coherence, we need to first explore classical coherence. Coherence is a term that describes how predictably waves behave over time and space. If two light waves are….
Cavity Quantum Electrodynamics (QED)
Before diving into cavity QED, let’s understand what quantum electrodynamics (QED) is. At its core, QED is the quantum theory of light and matter. It describes how photons (particles of….
Squeezed States of Light
To understand squeezed states of light, we first need to change how we think about light. In classical physics, light is a wave that travels through space. In quantum mechanics,….
Single-Photon Sources
A single-photon source is a device or system that emits one and only one photon at a time, on demand or probabilistically. In quantum technologies, especially quantum communication and quantum….
Quantum Random Number Generation
Quantum Random Number Generation (QRNG) is the process of generating random numbers using the unpredictable nature of quantum mechanics. Unlike classical computers, which use algorithms to create pseudo-random numbers, QRNG….
Photonic Quantum Computing
Photonic quantum computing uses particles of light, known as photons, to carry and process quantum information. Instead of using physical matter like electrons or ions, it harnesses the unique quantum….