Rydberg-atom phase-sensitive detection and the quantum Zeno effect

Milburn, G. J. and Gagen, M. J. (1992) Rydberg-atom phase-sensitive detection and the quantum Zeno effect. Physical Review a, 46 3: 1578-1585. doi:10.1103/PhysRevA.46.1578

Attached Files (Some files may be inaccessible until you login with your UQ eSpace credentials)
Name Description MIMEType Size Downloads
UQ247716_OA.pdf Full text (open access) application/pdf 361.04KB 0

Author Milburn, G. J.
Gagen, M. J.
Title Rydberg-atom phase-sensitive detection and the quantum Zeno effect
Journal name Physical Review a   Check publisher's open access policy
ISSN 1050-2947
1094-1622
Publication date 1992-08
Sub-type Article (original research)
DOI 10.1103/PhysRevA.46.1578
Open Access Status File (Publisher version)
Volume 46
Issue 3
Start page 1578
End page 1585
Total pages 8
Place of publication College Park, MD, United States
Publisher American Physical Society
Language eng
Abstract We present a scheme for experimentally observing the quantum Zeno effect using the quantum-nondemolition measurement recently proposed by Brune et al. [Phys. Rev. Lett. 65, 976 (1990)]. The Zeno effect refers to the freezing of the (unitary) free dynamics of a system by rapid measurements. We generalize the Zeno effect to be any change in the survival probability of an initial state induced by very rapid measurements, when such measurements are the dominant source of fluctuations in the system. We derive a master equation for the evolution of a cavity mode when the photon number is monitored by this method. This equation describes a phase-diffusion process. We propose that this measurement scheme be used to monitor the exchange of a single photon between the cavity and a single Rydberg atom. We show that for very rapid monitoring the free oscillation of the atomic inversion is disrupted and the atom can be trapped close to the initial excited state. This is the quantum Zeno effect.
Keyword Paradox
Q-Index Code C1
Q-Index Status Provisional Code
Institutional Status UQ

Document type: Journal Article
Sub-type: Article (original research)
Collection: School of Engineering Publications
 
Versions
Version Filter Type
Citation counts: TR Web of Science Citation Count  Cited 15 times in Thomson Reuters Web of Science Article | Citations
Scopus Citation Count Cited 16 times in Scopus Article | Citations
Google Scholar Search Google Scholar
Created: Thu, 08 Sep 2011, 20:10:12 EST by System User on behalf of Scholarly Communication and Digitisation Service