Title :
Quantum entanglement and metrology
Author :
Caves, Carlton M.
Author_Institution :
Department of Physics and Astronomy, University of New Mexico, Albuquerque, 87131, USA
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;
Conference_Titel :
Quantum Electronics and Laser Science Conference, 2007. QELS '07
Conference_Location :
Baltimore, MD, USA
Print_ISBN :
978-1-55752-834-6
DOI :
10.1109/QELS.2007.4431814
