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Quantum manipulation and measurement of single atoms in optical cavity QED

Ye, Jun and Hood, Christina J. and Lynn, Theresa and Mabuchi, Hideo and Vernooy, David W. and Kimble, H. Jeff (1999) Quantum manipulation and measurement of single atoms in optical cavity QED. IEEE Transactions on Instrumentation and Measurement, 48 (2). pp. 608-612. ISSN 0018-9456. http://resolver.caltech.edu/CaltechAUTHORS:YEJieeetim99

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Abstract

Using laser-cooled atoms strongly coupled to a high finesse optical cavity, we have performed real-time continuous measurements of single atomic trajectories in terms of the interaction energy (Eint) with the cavity. Individual transit events reveal a shot-noise limited measurement (fractional) sensitivity of 4×10-4/√Hz to variations in Eint/&planck; within a bandwidth of 1300 kHz. The strong coupling of atom and cavity leads to a maximum interaction energy greater than the kinetic energy of an intracavity laser-cooled atom, even under weak cavity excitation. Evidence of mechanical light forces for intracavity photon number <1 has been observed. The quantum character of the nonlinear optical response of the atom-cavity system is manifested for the trajectory of a single atom.


Item Type:Article
Additional Information:© Copyright 1999 IEEE. Reprinted with permission. Manuscript received July 2, 1998. This work was supported by the National Science Foundation, the Office of Naval Research, and DARPA via the QUIC Institute administered by ARO. The authors wish to acknowledge M. S. Champan’s vital contribution to the project.
Subject Keywords:Atomic physics, cavity QED, cooling and trapping, measurement, quantum measurement, real-time observation, strong coupling
Record Number:CaltechAUTHORS:YEJieeetim99
Persistent URL:http://resolver.caltech.edu/CaltechAUTHORS:YEJieeetim99
Alternative URL:http://dx.doi.org/10.1109/19.769669
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:5474
Collection:CaltechAUTHORS
Deposited By: Archive Administrator
Deposited On:19 Oct 2006
Last Modified:26 Dec 2012 09:12

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