DocumentCode
2795284
Title
Quantum entanglement and metrology
Author
Caves, Carlton M.
Author_Institution
Department of Physics and Astronomy, University of New Mexico, Albuquerque, 87131, USA
fYear
2007
fDate
6-11 May 2007
Firstpage
1
Lastpage
2
Abstract
For linear couplings of N systems to a parameter, quantum entanglement can improve the precision of parameter estimation from the 1/¿N shot-noise limit to the 1/N Heisenberg limit. Intrinsic ¿-body couplings improve this scaling further to 1/N¿.
Keywords
Astronomy; Information science; Metrology; Optical sensors; Parameter estimation; Physics; Probes; Quantum entanglement; Quantum mechanics; Uncertainty;
fLanguage
English
Publisher
ieee
Conference_Titel
Quantum Electronics and Laser Science Conference, 2007. QELS '07
Conference_Location
Baltimore, MD, USA
Print_ISBN
978-1-55752-834-6
Type
conf
DOI
10.1109/QELS.2007.4431814
Filename
4431814
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