Entangled mechanical cat states via conditional single photon optomechanics

Akram, Uzma, Bowen, Warwick P. and Milburn, G. J. (2013) Entangled mechanical cat states via conditional single photon optomechanics. New Journal of Physics, 15 093007.1-093007.21. doi:10.1088/1367-2630/15/9/093007

Author Akram, Uzma
Bowen, Warwick P.
Milburn, G. J.
Title Entangled mechanical cat states via conditional single photon optomechanics
Journal name New Journal of Physics   Check publisher's open access policy
ISSN 1367-2630
Publication date 2013-09-01
Year available 2013
Sub-type Article (original research)
DOI 10.1088/1367-2630/15/9/093007
Open Access Status DOI
Volume 15
Start page 093007.1
End page 093007.21
Total pages 21
Place of publication Bristol, United Kingdom
Publisher Institute of Physics Publishing
Language eng
Abstract We study single photon optomechanics conditioned on photon counting events. By selecting only detection events that occur long after a photon pulse arrives at the cavity, the optomechanical interaction time can be increased, allowing a large momentum kick to be applied to the oscillator. We apply this to two optomechanical cavities set-up within a Mach–Zhender interferometer driven by a single photon source. The conditional state of the mechanical modes in such a system becomes an entangled cat state for detection times resulting in maximum mechanical amplitude in phase space. Further we study the dynamics induced by a second photon pulse injected into an already conditioned optomechanical cavity, a quarter of a mechanical period after the first photon has been detected. We illustrate how the optomechanical interaction resulting from the second photon can be strongly suppressed allowing conditional optomechanical routing of single photons with single photon control pulses.
Keyword Physics, Multidisciplinary
Q-Index Code C1
Q-Index Status Confirmed Code
Grant ID CE110001013
Institutional Status UQ
Additional Notes Article no. 093007

Document type: Journal Article
Sub-type: Article (original research)
Collections: School of Mathematics and Physics
Official 2014 Collection
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Citation counts: TR Web of Science Citation Count  Cited 26 times in Thomson Reuters Web of Science Article | Citations
Scopus Citation Count Cited 26 times in Scopus Article | Citations
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