Cavity quantum electrodynamics of continuously monitored Bose-condensed atoms

Lee, Mark and Ruostekoski, Janne (2015) Cavity quantum electrodynamics of continuously monitored Bose-condensed atoms. Atoms, 3 (3). pp. 450-473. ISSN 2218-2004

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Abstract

We study cavity quantum electrodynamics of Bose-condensed atoms that are subjected to continuous monitoring of the light leaking out of the cavity. Due to a given detection record of each stochastic realization, individual runs spontaneously break the symmetry of the spatial profile of the atom cloud and this symmetry can be restored by considering ensemble averages over many realizations. We show that the cavity optomechanical excitations of the condensate can be engineered to target specific collective modes. This is achieved by exploiting the spatial structure and symmetries of the collective modes and light fields. The cavity fields can be utilized both for strong driving of the collective modes and for their measurement. In the weak excitation limit the condensate–cavity system may be employed as a sensitive phonon detector which operates by counting photons outside the cavity that have been selectively scattered by desired phonons.

Item Type:
Journal Article
Journal or Publication Title:
Atoms
Subjects:
ID Code:
123655
Deposited By:
Deposited On:
27 Feb 2018 11:38
Refereed?:
Yes
Published?:
Published
Last Modified:
11 Feb 2020 09:20