Endoscopic tomography and quantum nondemolition

Mauro Fortunato, Paolo Tombesi, and Wolfgang P. Schleich
Phys. Rev. A 59, 718 – Published 1 January 1999
PDFExport Citation

Abstract

We propose to measure the quantum state of a single mode of the radiation field in a cavity—the signal field—by coupling it via a quantum-non-demolition Hamiltonian to a meter field in a highly squeezed state. We show that quantum-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.

  • Received 27 March 1998

DOI:https://doi.org/10.1103/PhysRevA.59.718

©1999 American Physical Society

Authors & Affiliations

Mauro Fortunato* and Paolo Tombesi

  • Dipartimento di Matematica e Fisica, Università di Camerino, I-62032 Camerino, Italy
  • Istituto Nazionale per la Fisica della Materia, Unità di Ricerca di Camerino, I-62032 Camerino, Italy

Wolfgang P. Schleich

  • Abteilung für Quantenphysik, Universität Ulm, D-89069 Ulm, Germany

  • *Electronic address: fortunato@campus.unicam.it

References (Subscription Required)

Click to Expand
Issue

Vol. 59, Iss. 1 — January 1999

Reuse & Permissions
Access Options
Author publication services for translation and copyediting assistance advertisement

Authorization Required


×
×

Images

×

Sign up to receive regular email alerts from Physical Review A

Log In

Cancel
×

Search


Article Lookup

Paste a citation or DOI

Enter a citation
×