Quantum eraser and the decoherence time of a measurement process

Authors
Abranyos, Y Jakob, M Bergou, J
Citation
Y. Abranyos et al., Quantum eraser and the decoherence time of a measurement process, PHYS REV A, 60(4), 1999, pp. R2618-R2621
Citations number
21
Categorie Soggetti
Physics
Journal title
PHYSICAL REVIEW A
ISSN journal
10502947 → ACNP
Volume
60
Issue
4
Year of publication
1999
Pages
R2618 - R2621
Database
ISI
SICI code
1050-2947(199910)60:4<R2618:QEATDT>2.0.ZU;2-U
Abstract
We propose a which path quantum eraser scheme based on a recent experiment by Eichmann er nl. [Phys. Rev. Lett. 70, 2359 (1993)] involving two four-le vel atoms. We show that the quantum eraser can be used for the detection of the decoherence time of macroscopic or mesoscopic entangled superpositions of pointer states of a meter with one of the two atoms, by the visibility of the interference pattern. [S1050-2947(99)51410-8].