Dynamical model selection near the quantum-classical boundary

Ralph, J. F., Toroš, M. , Maskell, S., Jacobs, K., Rashid, M., Setter, A. J. and Ulbricht, H. (2018) Dynamical model selection near the quantum-classical boundary. Physical Review A: Atomic, Molecular and Optical Physics, 98(1), 010102(R). (doi: 10.1103/PhysRevA.98.010102)

Abstract

We discuss a general method of model selection from experimentally recorded time-trace data. This method can be used to distinguish between quantum and classical dynamical models. It can be used in postselection as well as for real-time analysis, and offers an alternative to statistical tests based on state-reconstruction methods. We examine the conditions that optimize quantum hypothesis testing, maximizing one's ability to discriminate between classical and quantum models. We set upper limits on the temperature and lower limits on the measurement efficiencies required to explore these differences, using an experiment in levitated optomechanical systems as an example.

• Item Type: Articles
• Status: Published
• Refereed: Yes
• Glasgow Author(s) Enlighten ID: Toros, Dr Marko
• Authors: Ralph, J. F., Toroš, M., Maskell, S., Jacobs, K., Rashid, M., Setter, A. J., and Ulbricht, H.
• College/School: College of Science and Engineering > School of Physics and Astronomy
• Journal Name: Physical Review A: Atomic, Molecular and Optical Physics
• Publisher: American Physical Society
• ISSN: 1050-2947
• ISSN (Online): 1094-1622
• Published Online: 06 July 2018