Practical schemes for the measurement of angular-momentum covariance matrices in quantum optics

2008/06/30 by Ángel Rivas, ́Angel Rivas, Alfredo Luis · 1 citation
Computer Science · Physics and Astronomy · #Cold Atom Physics and Bose-Einstein Condensates #Quantum Information and Cryptography #Quantum optics and atomic interactions #quant-ph

paper · pdf · doi:10.1103/physreva.78.043814

published as Phys. Rev. A 78, 043814 (2008) · 8 pages, 5 figures. References added and minor changes. Final version

openalex publication_date 2008/10/14 · arxiv created 2008/10/15 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28

Abstract

We develop practical schemes for the measurement of the covariance matrix for intrinsic angular-momentum variables in quantum optics. We particularize this approach to two-beam polarimetry and interferometry, as well as to ensembles of two-level atoms interacting with classical fields. We show the practical advantages of noisy simultaneous measurements.

Citations

• Relative phase of two Bose-Einstein condensates
• Distribution functions in physics: Fundamentals
• Constraints on the uncertainties of entangled symmetric qubits
• Entanglement detection in optical lattices of bosonic atoms with collective measurements

Cited by

• Measuring arbitrary-order coherences: Tomography of single-mode multiphoton polarization-entangled states