Warszawski, P. and Wiseman, H. M. and Mabuchi, H. (2002) Quantum trajectories for realistic detection. Physical Review A, 65 (2). Art. No. 023802. ISSN 1050-2947. doi:10.1103/PhysRevA.65.023802. https://resolver.caltech.edu/CaltechAUTHORS:WARpra02
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Abstract
Quantum trajectories describe the stochastic evolution of an open quantum system conditioned on continuous monitoring of its output, such as, by an ideal photodetector. Here we derive (non-Markovian) quantum trajectories for realistic photodetection, including the effects of efficiency, dead time, bandwidth, electronic noise, and dark counts. We apply our theory to a realistic cavity QED scenario and investigate the impact of such detector imperfections on the conditional evolution of the system state. A practical theory of quantum trajectories with realistic detection will be essential for experimental and technological applications of quantum feedback in many areas.
| Item Type: | Article | ||||||
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| Additional Information: | ©2002 The American Physical Society Received 6 March 2001; published 4 January 2002 | ||||||
| Issue or Number: | 2 | ||||||
| DOI: | 10.1103/PhysRevA.65.023802 | ||||||
| Record Number: | CaltechAUTHORS:WARpra02 | ||||||
| Persistent URL: | https://resolver.caltech.edu/CaltechAUTHORS:WARpra02 | ||||||
| Usage Policy: | No commercial reproduction, distribution, display or performance rights in this work are provided. | ||||||
| ID Code: | 6156 | ||||||
| Collection: | CaltechAUTHORS | ||||||
| Deposited By: | Archive Administrator | ||||||
| Deposited On: | 27 Nov 2006 | ||||||
| Last Modified: | 08 Nov 2021 20:31 |
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