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Forums
Physics
Quantum Physics
Rabi Hamiltonian : counter-rotating terms
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[QUOTE="vanhees71, post: 6471610, member: 260864"] I'd need a bit more context. What are the annihilation and creation operators and the "spin-ladder operators" refer to? Maybe you refer to the Jaynes-Cummings model? [URL]https://en.wikipedia.org/wiki/Jaynes%E2%80%93Cummings_model[/URL] Here a two-level "atom" is formally described using spin-1/2 operators. The "counter-rotating terms" mean transitions, where a photon is emitted and the atom is excited to a higher state or a photon is absorbed and the atom relaxes to its lower state. As explained in the Wikipedia article these rapidly oscillating contributions are often neglected, leading to the solvable "rotating-wave approximation". [/QUOTE]
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Physics
Quantum Physics
Rabi Hamiltonian : counter-rotating terms
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