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Abstract
The phenomenon of telegraphing in a measurement-driven two-level atom was noted in Cresser et al. [Cresser, J.D.; Barnett, S.M.; Jeffers, J.; Pegg, D.T. Opt. Commun. 2006, 264, 352361]. Here we introduce two quantitative measures of telegraphing: one based on the accumulated measurement record and one on the evolution of the quantum state. We use these to analyse the dynamics of the atom over a wide range of parameters. We find, in particular, that the measures provide broadly similar statistics when the measurements are frequent, but differ widely when measurements are sparse. This is in line with intuition, and demonstrates the utility of both measures.
Original language | English |
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Pages (from-to) | 1803-1815 |
Number of pages | 13 |
Journal | Journal of Modern Optics |
Volume | 59 |
Issue number | 21 |
Early online date | 22 Nov 2012 |
DOIs | |
Publication status | Published - 2012 |
Keywords
- master equations
- Lindblad form
- Markov processes
- telegraphing
- Rabi cycle
- two-state atoms
- imperfect measurements
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Dive into the research topics of 'Measurement-driven dynamics for a coherently-excited atom'. Together they form a unique fingerprint.Projects
- 1 Finished
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WOLFSON RESEARCH MERIT AWARDS 2007: PROF S BARNETT
Barnett, S. (Principal Investigator)
1/06/07 → 30/11/12
Project: Research