Title :
Universality of the Heisenberg limit for estimates of random phase shifts
Author :
Hall, Michael J W ; Berry, Dominic W. ; Zwierz, Marcin ; Wiseman, Howard M.
Author_Institution :
Centre for Quantum Comput. & Commun. Techology, Griffith Univ., Brisbane, QLD, Australia
Abstract :
Recent work has suggested that it is possible to perform phase measurements more accurately than the Heisenberg limit. We show that, when one averages over random phase shifts, the Heisenberg limit is universal.
Keywords :
optical variables measurement; phase measurement; quantum optics; Heisenberg limit; Universality of the Heisenberg; phase measurements; random phase shifts; Australia; Educational institutions; Optical sensors; Phase measurement; Photonics; Probes; Quantum computing;
Conference_Titel :
Lasers and Electro-Optics (CLEO), 2012 Conference on
Conference_Location :
San Jose, CA
Print_ISBN :
978-1-4673-1839-6
