dc.contributor.author | Wiseman, HM | |
dc.date.accessioned | 2017-05-03T11:50:46Z | |
dc.date.available | 2017-05-03T11:50:46Z | |
dc.date.issued | 2002 | |
dc.date.modified | 2009-12-02T05:51:08Z | |
dc.identifier.issn | 1050-2947 | |
dc.identifier.doi | 10.1103/PhysRevA.65.032111 | |
dc.identifier.uri | http://hdl.handle.net/10072/6980 | |
dc.description.abstract | Weak values as introduced by Aharonov, Albert, and Vaidman (AAV) are ensemble-average values for the results of weak measurements. They are interesting when the ensemble is preselected on a particular initial state and postselected on a particular final measurement result. It is shown that weak values arise naturally in quantum optics, as weak measurements occur whenever an open system is monitored (as by a photodetector). The quantum-trajectory theory is used to derive a generalization of AAV's formula to include (a) mixed initial conditions, (b) nonunitary evolution, (c) a generalized (nonprojective) final measurement, and (d) a non-back-action-evading weak measurement. This theory is applied to the recent cavity-QED experiment demonstrating wave particle duality [G. T. Foster, L. A. Orozco, H. M. Castro-Beltran, and H. J. Carmichael, Phys. Rev. Lett. 85, 3149 (2000)]. It is shown that the "fractional-order" correlation function measured in that experiment can be recast as a weak value in a form as simple as that introduced by AAV. | |
dc.description.peerreviewed | Yes | |
dc.description.publicationstatus | Yes | |
dc.format.extent | 108758 bytes | |
dc.format.mimetype | application/pdf | |
dc.language | English | |
dc.language.iso | eng | |
dc.publisher | American Physical Society | |
dc.publisher.place | USA | |
dc.publisher.uri | https://journals.aps.org/pra/abstract/10.1103/PhysRevA.65.032111 | |
dc.relation.ispartofpagefrom | 032111.1 | |
dc.relation.ispartofpageto | 032111.6 | |
dc.relation.ispartofjournal | Physical Review A: Atomic, Molecular and Optical Physics | |
dc.relation.ispartofvolume | 65 | |
dc.subject.fieldofresearch | Mathematical sciences | |
dc.subject.fieldofresearch | Physical sciences | |
dc.subject.fieldofresearch | Chemical sciences | |
dc.subject.fieldofresearchcode | 49 | |
dc.subject.fieldofresearchcode | 51 | |
dc.subject.fieldofresearchcode | 34 | |
dc.title | Weak values, quantum trajectories, and the cavity-QED experiment on wave-particle correlation | |
dc.type | Journal article | |
dc.type.description | C1 - Articles | |
dc.type.code | C - Journal Articles | |
gro.rights.copyright | © 2002 American Physical Society. This is the author-manuscript version of this paper. Reproduced in accordance with the copyright policy of the publisher. Please refer to the journal's website for access to the definitive, published version. | |
gro.date.issued | 2002 | |
gro.hasfulltext | Full Text | |
gro.griffith.author | Wiseman, Howard M. | |