Discorrelated quantum states.
| Autor: | Meyer-Scott E; Department of Physics, University of Paderborn, Warburger Straße 100, 33098 Paderborn, Germany., Tiedau J; Department of Physics, University of Paderborn, Warburger Straße 100, 33098 Paderborn, Germany., Harder G; Department of Physics, University of Paderborn, Warburger Straße 100, 33098 Paderborn, Germany., Shalm LK; National Institute of Standards and Technology, 325 Broadway, Boulder, CO, 80305, USA., Bartley TJ; Department of Physics, University of Paderborn, Warburger Straße 100, 33098 Paderborn, Germany. |
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| Jazyk: | angličtina |
| Zdroj: | Scientific reports [Sci Rep] 2017 Jan 30; Vol. 7, pp. 41622. Date of Electronic Publication: 2017 Jan 30. |
| DOI: | 10.1038/srep41622 |
| Abstrakt: | The statistical properties of photons are fundamental to investigating quantum mechanical phenomena using light. In multiphoton, two-mode systems, correlations may exist between outcomes of measurements made on each mode which exhibit useful properties. Correlation in this sense can be thought of as increasing the probability of a particular outcome of a measurement on one subsystem given a measurement on a correlated subsystem. Here, we show a statistical property we call "discorrelation", in which the probability of a particular outcome of one subsystem is reduced to zero, given a measurement on a discorrelated subsystem. We show how such a state can be constructed using readily available building blocks of quantum optics, namely coherent states, single photons, beam splitters and projective measurement. We present a variety of discorrelated states, show that they are entangled, and study their sensitivity to loss. Competing Interests: The authors declare no competing financial interests. |
| Databáze: | MEDLINE |
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