skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Quantum reading of unitary optical devices

Abstract

We address the problem of quantum reading of optical memories, namely the retrieving of classical information stored in the optical properties of a media with minimum energy. We present optimal strategies for ambiguous and unambiguous quantum reading of unitary optical memories, namely when one's task is to minimize the probability of errors in the retrieved information and when perfect retrieving of information is achieved probabilistically, respectively. A comparison of the optimal strategy with coherent probes and homodyne detection shows that the former saves orders of magnitude of energy when achieving the same performances. Experimental proposals for quantum reading which are feasible with present quantum optical technology are reported.

Authors:
 [1]; ;  [2]
  1. Graduate School of Information Science, Nagoya University, Nagoya, 464-8601 (Japan)
  2. Quit Group, Dipartimento di Fisica, via Bassi 6, I-27100 Pavia, Italy and Istituto Nazionale di Fisica Nucleare, Gruppo IV, via Bassi 6, I-27100 Pavia (Italy)
Publication Date:
OSTI Identifier:
22390694
Resource Type:
Journal Article
Journal Name:
AIP Conference Proceedings
Additional Journal Information:
Journal Volume: 1633; Journal Issue: 1; Conference: 11. International Conference on Quantum Communication, Measurement and Computation, Vienna (Austria), 30 Jul - 3 Aug 2012; Other Information: (c) 2014 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA); Journal ID: ISSN 0094-243X
Country of Publication:
United States
Language:
English
Subject:
71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; COMPARATIVE EVALUATIONS; DETECTION; ERRORS; OPTICAL PROPERTIES; PROBABILITY; PROBES; QUANTUM INFORMATION; QUANTUM MECHANICS

Citation Formats

Dall'Arno, Michele, ICFO-Institut de Ciencies Fotoniques, E-08860 Castelldefels, Quit Group, Dipartimento di Fisica, via Bassi 6, I-27100 Pavia, Bisio, Alessandro, and D'Ariano, Giacomo Mauro. Quantum reading of unitary optical devices. United States: N. p., 2014. Web. doi:10.1063/1.4903142.
Dall'Arno, Michele, ICFO-Institut de Ciencies Fotoniques, E-08860 Castelldefels, Quit Group, Dipartimento di Fisica, via Bassi 6, I-27100 Pavia, Bisio, Alessandro, & D'Ariano, Giacomo Mauro. Quantum reading of unitary optical devices. United States. https://doi.org/10.1063/1.4903142
Dall'Arno, Michele, ICFO-Institut de Ciencies Fotoniques, E-08860 Castelldefels, Quit Group, Dipartimento di Fisica, via Bassi 6, I-27100 Pavia, Bisio, Alessandro, and D'Ariano, Giacomo Mauro. 2014. "Quantum reading of unitary optical devices". United States. https://doi.org/10.1063/1.4903142.
@article{osti_22390694,
title = {Quantum reading of unitary optical devices},
author = {Dall'Arno, Michele and ICFO-Institut de Ciencies Fotoniques, E-08860 Castelldefels and Quit Group, Dipartimento di Fisica, via Bassi 6, I-27100 Pavia and Bisio, Alessandro and D'Ariano, Giacomo Mauro},
abstractNote = {We address the problem of quantum reading of optical memories, namely the retrieving of classical information stored in the optical properties of a media with minimum energy. We present optimal strategies for ambiguous and unambiguous quantum reading of unitary optical memories, namely when one's task is to minimize the probability of errors in the retrieved information and when perfect retrieving of information is achieved probabilistically, respectively. A comparison of the optimal strategy with coherent probes and homodyne detection shows that the former saves orders of magnitude of energy when achieving the same performances. Experimental proposals for quantum reading which are feasible with present quantum optical technology are reported.},
doi = {10.1063/1.4903142},
url = {https://www.osti.gov/biblio/22390694}, journal = {AIP Conference Proceedings},
issn = {0094-243X},
number = 1,
volume = 1633,
place = {United States},
year = {Thu Dec 04 00:00:00 EST 2014},
month = {Thu Dec 04 00:00:00 EST 2014}
}