Phase-shift amplification for precision measurements without nonclassical states
- 4 January 2002
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review A
- Vol. 65 (2) , 025802
- https://doi.org/10.1103/physreva.65.025802
Abstract
We propose a practical arrangement that allows one to reach the Heisenberg limit in precision phase-shift measurements. This is achieved via phase-shift amplification. The arrangement we propose is based on experimental processes already carried out and does not require the use of any special quantum state.Keywords
This publication has 27 references indexed in Scilit:
- Entanglement, Decoherence and the Quantum/Classical BoundaryPhysics Today, 1998
- Reversible Decoherence of a Mesoscopic Superposition of Field StatesPhysical Review Letters, 1997
- Fundamental quantum limit in precision phase measurementPhysical Review A, 1997
- Generation of Schrödinger cats and entangled coherent states in the motion of a trapped ionby a dispersive interactionPhysical Review A, 1997
- Generation of nonclassical states of the center-of-mass motion of ions by dispersive couplingPhysical Review A, 1997
- Observing the Progressive Decoherence of the “Meter” in a Quantum MeasurementPhysical Review Letters, 1996
- A “Schrödinger Cat” Superposition State of an AtomScience, 1996
- Mesoscopic quantum coherences in cavity QED: Preparation and decoherence monitoring schemesPhysical Review A, 1996
- Quantum switches and nonlocal microwave fieldsPhysical Review Letters, 1993
- Manipulation of photons in a cavity by dispersive atom-field coupling: Quantum-nondemolition measurements and generation of ‘‘Schrödinger cat’’ statesPhysical Review A, 1992