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Entanglement assisted weak force detection
Author(s) -
Fermani R.,
Mancini S.,
Tombesi P.
Publication year - 2004
Publication title -
fortschritte der physik
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.469
H-Index - 71
eISSN - 1521-3978
pISSN - 0015-8208
DOI - 10.1002/prop.200410181
Subject(s) - quantum entanglement , quantum sensor , physics , sensitivity (control systems) , quantum metrology , quantum , quantum mechanics , statistical physics , quantum discord , engineering , electronic engineering , quantum network
We study the role of entanglement in weak force detection. We consider massive probes, experiencing a weak force, monitored through optical meters which may be entangled. We reduce the problem of force detection to quantum binary decision. Entanglement is shown to be useful in such a kind of detection. The sensitivity limits are then discussed.