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Journal articles
Quantum-nondemolition measurements using ghost transitions
Abstract : We present a detailed analysis of the quantum-nondemolition (QND) properties of a measurement scheme employing coherently driven three-level atoms in the Λ or cascade configuration inside an optical cavity. We propose to use a strong signal field to empty one of the transitions and dress the signal-transition levels. The atoms become transparent for the signal beam, which sees a ''ghost transition.'' When a probe is applied and tuned to the vicinity of one of the light-shifted levels, the probe phase is extremely sensitive to fluctuations of the signal intensity. This enhances the QND coupling and enables the system to operate at lower cooperativities.
Cited literature [10 references]
https://hal-iogs.archives-ouvertes.fr/hal-00559005
Contributor : Philippe Grangier <>
Submitted on : Monday, May 23, 2016 - 4:30:13 PM
Last modification on : Wednesday, October 14, 2020 - 3:59:53 AM
Contributor : Philippe Grangier <>
Submitted on : Monday, May 23, 2016 - 4:30:13 PM
Last modification on : Wednesday, October 14, 2020 - 3:59:53 AM
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00559005.pdf
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