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

被引:20
作者
Haine, Simon A. [1 ]
Lau, Wing Yung Sarah [2 ,3 ]
机构
[1] Univ Queensland, Sch Math & Phys, Brisbane, Qld 4072, Australia
[2] Univ Queensland, Sch Math & Phys, Australian Res Council Ctr Engn Quantum Syst, Brisbane, Qld 4072, Australia
[3] Univ Queensland, Sch Math & Phys, Australian Res Council Ctr Quantum Comp & Commun, Brisbane, Qld 4072, Australia
基金
澳大利亚研究理事会;
关键词
BOSE-EINSTEIN CONDENSATE; STATES; LIMIT; PHOTON; NOISE; MODEL; FIELD;
D O I
10.1103/PhysRevA.93.023607
中图分类号
O43 [光学];
学科分类号
070207 ; 0803 ;
摘要
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.
引用
收藏
页数:9
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