Quantum Electrodynamics: Light and Matter Explained
Quantum electrodynamics describes how light and matter interact. Feynman diagrams, virtual photons, renormalization and the Lamb shift explained.
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739 articlesQuantum electrodynamics describes how light and matter interact. Feynman diagrams, virtual photons, renormalization and the Lamb shift explained.
What energy means at the quantum scale: discrete energy levels, quanta, tunneling and field theory, and how they underpin sensing and computing.
How quantum states change over time under the Schrödinger equation, and how tunneling, interference, measurement and decoherence fit in.
Quantum dots are semiconductor nanocrystals whose size sets their color. Their properties, synthesis, core-shell designs and uses in displays and medicine.
Where the word quantum comes from and what it means in physics: quantization, superposition, entanglement, tunneling and their technologies.
How quantum communication uses superposition and entanglement to send information, from QKD protocols to satellite links and quantum networks.
The real risks of quantum computing: broken public-key encryption, harvest-now-decrypt-later attacks, network weaknesses and a geopolitical arms race.
How quantum chemistry applies the Schrödinger equation to atoms and molecules: quantum numbers, orbitals, electronic structure and chemical bonds.
How machine learning runs on quantum computers: hybrid quantum-classical models, quantum neural networks, feature selection, training and evaluation.
Quantum chromodynamics describes how quarks and gluons interact. Color charge, confinement, asymptotic freedom, lattice QCD and Feynman diagrams.
What Elon Musk has and has not said about quantum AI, set against the actual state of quantum computing and machine learning research.
What quantum computing could and could not bring to video games: physics simulation, procedural generation, AI opponents and cloud gaming.