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Spontaneous emission from a moving atom strongly coupled to a standing-wave cavity

Thesis/Dissertation ·
OSTI ID:39322
The spontaneous emission from an atom strongly coupled to a standing-wave cavity mode is studied. The interaction between the atom and the cavity mode is treated nonperturbatively. The spectra of spontaneous emission are first calculated using a classical model for the atomic center-of-mass motion. The spectra feature a multipeaked structure with peaks placed symmetrically about the resonant frequency, which can be understood in terms of interfering probability amplitudes for different quantum-mechanical emission paths or as a frequency-modulated spectrum for radiating coupled oscillators. The spontaneous emission spectra are then calculated by treating the atomic center-of-mass motion quantum mechanically. The new spectra agree with the classical spectra if the atom is heavy and fast. Generally the new spectra possess a complicated multipeaked structure which is asymmetric and can be interpreted as the result of transitions between the Bloch states (eigenstates of the atom-cavity system).
Research Organization:
Oregon Univ., Eugene, OR (United States)
OSTI ID:
39322
Country of Publication:
United States
Language:
English

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