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Full observation of single-atom dynamics in cavity QED

Hideo Mabuchi·Jun Ye·H. Jeff Kimble
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Abstract

We report the use of broadband heterodyne spectroscopy to perform continuous measurement of the interaction energy between one atom and a high-finesse optical cavity, during individual transit events of $\sim 250$ $μ$s duration. Measurements over a wide range of atom-cavity detunings reveal the transition from resonant to dispersive coupling, via the transfer of atom-induced signals from the amplitude to the phase of light transmitted through the cavity. By suppressing all sources of excess technical noise, we approach a measurement regime in which the broadband photocurrent may be interpreted as a classical record of conditional quantum evolution in the sense of recently developed quantum trajectory theories.

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Hideo Mabuchi, Jun Ye, H. Jeff Kimble. 1998-05-25. Full observation of single-atom dynamics in cavity QED. https://doi.org/10.1007/s003400050751

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