Rotating wave approximation

The rotating wave approximation is an approximation used in atom optics and magnetic resonance. In this approximation, terms in a Hamiltonian which oscillate rapidly are neglected. This is a valid approximation when the applied electromagnetic radiation is near resonance with an atomic transition, and the intensity is low. Explicitly, terms in the Hamiltonians which oscillate with frequencies $\omega_L+\omega_0$ are neglected, while terms which oscillate with frequencies $\omega_L-\omega_0$ are kept, where $\omega_L$ is the light frequency and $\omega_0$ is a transition frequency.

单词	Rotating wave approximation
释义	Rotating wave approximation 英语百科 Rotating wave approximation The rotating wave approximation is an approximation used in atom optics and magnetic resonance. In this approximation, terms in a Hamiltonian which oscillate rapidly are neglected. This is a valid approximation when the applied electromagnetic radiation is near resonance with an atomic transition, and the intensity is low. Explicitly, terms in the Hamiltonians which oscillate with frequencies $\omega_L+\omega_0$ are neglected, while terms which oscillate with frequencies $\omega_L-\omega_0$ are kept, where $\omega_L$ is the light frequency and $\omega_0$ is a transition frequency.
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