Challenges
Datasets
Workspaces
Papers
Discussions
Leaderboard
Log inSign up
Challenges
Datasets
Workspaces
Papers
Discussions
Leaderboard
Blog
Job Board
Q3AS

© 2026 Aqora Quantum S.A.S.

TermsPrivacyLegal Notice

Journal of the Optical Society of America B

Theory of interaction-free measurements in cavity resonators

Anders Karlsson, Gunnar G. Bjork, Tedros Tsegaye

Published Dec 1, 1998• 3 citations
Publisher

Abstract

We analyze interaction-free measurements in cavity resonators. We study both classical objects and quantum objects: two-level atoms strongly coupled to a cavity mode. We also discuss complementarity in interaction-free measurement.
DOI
10.1364/josab.15.002958

Related papers

Interaction-Free Measurements, Atom Localisation and Complementarity

Anders Karlsson, Gunnar G. Bjork, Erik Forsberg

We analyse interaction-free measurements on classical and quantum objects. We show the transition from a classical interaction free measurement to a quantum non-demolition measurement of atom number, and discuss the mechanism of the enforcement of complementarity in atom interferometric interaction-free measurements.

arXiv:quant-ph/9705006•May 7, 1997•1 citation

“Interaction” (Energy Exchange) Free and Quantum Nondemolition Measurements

Anders Karlsson, Gunnar G. Bjork, Erik Forsberg

We analyze ``interaction'' (energy exchange) free measurements on classical and quantum objects. We show the transition from a classical ``interaction free'' measurement to a quantum nondemolition measurement of atom number, and discuss the mechanism of the enforcement of complementarity in atom interferometric interaction free measurements.

Physical Review Letters•Feb 9, 1998•30 citations

Cavity quantum optics

S. Haroche

Elementary atom-photon interactions are strongly modified when the atom is confined to a small cavity. Interesting application in clued the generation and non-destructive measurement of microwave fields containing only a few photons and the production of “non-classical” radiation fields with reduced intensity fluctuations. This should lead to new fundamental tests of quantum theory at very low energies.

Physics World•Mar 1, 1991•6 citations

Decoherence in the solvable dynamics of N strongly driven atoms coupled to a cavity mode

Matteo Bina, Federico Casagrande, ALFREDO LULLI

We present the exact solution of the dynamics of N two-level atoms strongly driven by an external coherent field and equally coupled on resonance to a cavity mode, in the presence of both cavity dissipation and atomic decay. Analytical results are presented for system and subsystem dynamics, showing how environment-induced decoherence leads the system from pure to mixed states. In the limit of negligible atomic decay, where the system is known to exhibit decoherence-free subspaces, we present a detailed discussion of the decoherence function that can be monitored by atomic population measurements.

Optics and Spectroscopy•Mar 1, 2010•2 citations

Quantum Zeno effect induced by quantum-nondemolition measurement of photon number

M. J. Gagen, Gerard J Milburn

Measurements performed on a system will alter the dynamics of that system, and in the strong-measurement limit, can theoretically freeze the free evolution completely. This is the quantum Zeno effect. We utilize quantum-nondemolition photon-counting techniques to realize the Zeno effect on the evolution of either a two-level Jaynes-Cummings atom interacting with a resonant cavity mode, or on two electromagnetic modes configured as a multilevel parametric frequency converter. These systems interact with another electromagnetic cavity mode via a quadratic coupling system based on four-wave mixing and constructed so as to be a nondemolition measurement of the photon number. This mode is then coupled to the environment through the cavity mirrors. This measurement is shown to be a measurement of system populations, which generates the desired Zeno effect and in the strong-measurement limit will freeze the free dynamics of the system.

Physical Review A•Apr 1, 1992•17 citations

Interaction-Free Measurements: A Complex Nonlinear Explanation

António Cardoso, João L. Cordovil, J. R. Croca

In this paper we show that interaction-free measurements, which have been object of much discussion in the last few decades, can be explained in a natural and intuitive way in the framework of complex nonlinear quantum physics, contrary to what is claimed by some orthodox authors that present them as incomprehensible, mind-boggling experiments.

arXiv:1501.01993•Journal of Advanced Physics•Jun 3, 2015•2 citations
We present the exact solution of the dynamics of N two-level atoms strongly driven by an external coherent field and equally coupled on resonance to a cavity mode, in the presence of both cavity dissipation and atomic decay. Analytical results are presented for system and subsystem dynamics, showing how environment-induced decoherence leads the system from pure to mixed states. In the limit of negligible atomic decay, where the system is known to exhibit decoherence-free subspaces, we present a detailed discussion of the decoherence function that can be monitored by atomic population measurements.
Measurements performed on a system will alter the dynamics of that system, and in the strong-measurement limit, can theoretically freeze the free evolution completely. This is the quantum Zeno effect. We utilize quantum-nondemolition photon-counting techniques to realize the Zeno effect on the evolution of either a two-level Jaynes-Cummings atom interacting with a resonant cavity mode, or on two electromagnetic modes configured as a multilevel parametric frequency converter. These systems interact with another electromagnetic cavity mode via a quadratic coupling system based on four-wave mixing and constructed so as to be a nondemolition measurement of the photon number. This mode is then coupled to the environment through the cavity mirrors. This measurement is shown to be a measurement of system populations, which generates the desired Zeno effect and in the strong-measurement limit will freeze the free dynamics of the system.