Generation of atom-light entanglement in an optical cavity for quantum enhanced atom interferometry

Haine, Simon A and Lau, Wing Yung Sarah (2016) Generation of atom-light entanglement in an optical cavity for quantum enhanced atom interferometry. Physical Review A, 93 (2). p. 3607. ISSN 2469-9926

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Abstract

We theoretically investigate the generation of atom-light entanglement via Raman superradiance in an optical cavity, and show how this can be used to enhance the sensitivity of atom interferometry. We model a realistic optical cavity, and show that by careful temporal shaping of the optical local oscillator used to measure the light emitted from the cavity, information in the optical mode can be combined with the signal from the atom interferometer to reduce the quantum noise, and thus increase the sensitivity. It was found in Phys. Rev. Lett. 110, 053002 (2013) that an atomic “seed” was required in order to reduce spontaneous emission and allow for single mode behavior of the device. In this paper we find that the optical cavity reduces the need for an atomic seed, which allows for stronger atom-light correlations and a greater level of quantum enhancement.

Item Type: Article
Schools and Departments: School of Mathematical and Physical Sciences > Physics and Astronomy
Research Centres and Groups: Atomic, Molecular and Optical Physics Research Group
Subjects: Q Science > QC Physics
Depositing User: Richard Chambers
Date Deposited: 12 Jan 2017 15:34
Last Modified: 06 Mar 2017 08:46
URI: http://sro.sussex.ac.uk/id/eprint/66134

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