Get 20M+ Full-Text Papers For Less Than $1.50/day. Start a 14-Day Trial for You or Your Team.

Learn More →

Quantum metrology for relativistic quantum fields

Quantum metrology for relativistic quantum fields In quantum metrology quantum properties such as squeezing and entanglement are exploited in the design of a new generation of clocks, sensors and other measurement devices that can outperform their classical counterparts. Applications of great technological relevance lie in the precise measurement of parameters which play a central role in relativity, such as proper accelerations, relative distances, time and gravitational field strengths. In this paper we generalize recently introduced techniques to estimate physical quantities within quantum field theory in flat and curved space-time. We consider a bosonic quantum field that undergoes a generic transformation, which encodes the parameter to be estimated. We present analytical formulas for optimal precision bounds on the estimation of small parameters in terms of Bogoliubov coefficients for single-mode and two-mode Gaussian channels. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Physical Review D American Physical Society (APS)

Quantum metrology for relativistic quantum fields

Physical Review D , Volume 89 (6): 10 – Mar 20, 2014
10 pages

Loading next page...
 
/lp/american-physical-society-aps/quantum-metrology-for-relativistic-quantum-fields-hHTUO2t0gN

References (6)

Publisher
American Physical Society (APS)
Copyright
© 2014 American Physical Society
Subject
ARTICLES; Field Theory, Formal Particle Theory
ISSN
1550-7998
eISSN
1550-2368
DOI
10.1103/PhysRevD.89.065028
Publisher site
See Article on Publisher Site

Abstract

In quantum metrology quantum properties such as squeezing and entanglement are exploited in the design of a new generation of clocks, sensors and other measurement devices that can outperform their classical counterparts. Applications of great technological relevance lie in the precise measurement of parameters which play a central role in relativity, such as proper accelerations, relative distances, time and gravitational field strengths. In this paper we generalize recently introduced techniques to estimate physical quantities within quantum field theory in flat and curved space-time. We consider a bosonic quantum field that undergoes a generic transformation, which encodes the parameter to be estimated. We present analytical formulas for optimal precision bounds on the estimation of small parameters in terms of Bogoliubov coefficients for single-mode and two-mode Gaussian channels.

Journal

Physical Review DAmerican Physical Society (APS)

Published: Mar 20, 2014

There are no references for this article.