Quantum and classical phases in optomechanics
- Author(s)
- Federico Armata, Ludovico Latmiral, Igor Pikovski, Michael R. Vanner, Caslav Brukner, M. S. Kim
- Abstract
The control of quantum systems requires the ability to change and read-out the phase of a system. The noncommutativity of canonical conjugate operators can induce phases on quantum systems, which can be employed for implementing phase gates and for precision measurements. Here we study the phase acquired by a radiation field after its radiation pressure interaction with a mechanical oscillator, and compare the classical and quantum contributions. The classical description can reproduce the nonlinearity induced by the mechanical oscillator and the loss of correlations between mechanics and optical field at certain interaction times. Such features alone are therefore insufficient for probing the quantum nature of the interaction. Our results thus isolate genuine quantum contributions of the optomechanical interaction that could be probed in current experiments.
- Organisation(s)
- Quantum Optics, Quantum Nanophysics and Quantum Information
- External organisation(s)
- Imperial College London, Harvard-Smithsonian Center for Astrophysics, Harvard University, University of Oxford, Österreichische Akademie der Wissenschaften (ÖAW)
- Journal
- Physical Review A
- Volume
- 93
- No. of pages
- 9
- ISSN
- 1050-2947
- DOI
- https://doi.org/10.1103/PhysRevA.93.063862
- Publication date
- 06-2016
- Peer reviewed
- Yes
- Austrian Fields of Science 2012
- 103025 Quantum mechanics, 103021 Optics
- Keywords
- ASJC Scopus subject areas
- Atomic and Molecular Physics, and Optics
- Portal url
- https://ucrisportal.univie.ac.at/en/publications/5cdf4c71-2df9-46a2-a295-14eff1ea0a54