Endoscopic tomography and quantum nondemolition

Authors
Fortunato, M Tombesi, P Schleich, WP
Citation
M. Fortunato et al., Endoscopic tomography and quantum nondemolition, PHYS REV A, 59(1), 1999, pp. 718-727
Citations number
42
Categorie Soggetti
Physics
Journal title
PHYSICAL REVIEW A
ISSN journal
10502947 → ACNP
Volume
59
Issue
1
Year of publication
1999
Pages
718 - 727
Database
ISI
SICI code
1050-2947(199901)59:1<718:ETAQN>2.0.ZU;2-X
Abstract
We propose to measure the quantum state of a single mode of the radiation f ield in a cavity-the signal field-by coupling it via a quantum-non-demoliti on Hamiltonian to a meter field in a highly squeezed state. We show that qu antum-state tomography on the meter field using balanced homodyne detection provides full information about the signal state. We discuss the influence of measurement of the meter on the signal field. [S1050-2947(99)00801-X].