Quantum-Enhanced Measurements: Beating the Standard Quantum Limit-Reference-Cited by-同舟云学术

Quantum-Enhanced Measurements: Beating the Standard Quantum Limit

Published:2004-11-19 Issue:5700 Volume:306 Page:1330-1336
ISSN:0036-8075
Container-title:Science
language:en
Short-container-title:Science

Author:

Giovannetti Vittorio¹²³,Lloyd Seth¹²³,Maccone Lorenzo¹²³

Affiliation:

1. National Enterprise for nanoScience and nanoTechnology–Istituto Nazionale per la Fisica della Materia and Scuola Normale Superiore, Piazza dei Cavalieri 7, I-56126, Pisa, Italy.

2. Research Laboratory of Electronics and Department of Mechanical Engineering, Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge, MA 02139, USA.

3. Quantum Information Theory Group Dipartimento di Fisica “A. Volta,” Università di Pavia, via A. Bassi 6 I-27100, Pavia, Italy.

Abstract

Quantum mechanics, through the Heisenberg uncertainty principle, imposes limits on the precision of measurement. Conventional measurement techniques typically fail to reach these limits. Conventional bounds to the precision of measurements such as the shot noise limit or the standard quantum limit are not as fundamental as the Heisenberg limits and can be beaten using quantum strategies that employ “quantum tricks” such as squeezing and entanglement.

Publisher

American Association for the Advancement of Science (AAAS)

Subject

Multidisciplinary

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