Gaussian Transformations and Distillation of Entangled Gaussian States
نویسندگان
چکیده
منابع مشابه
Gaussian transformations and distillation of entangled Gaussian states.
We prove that it is impossible to distill more entanglement from a single copy of a two-mode bipartite entangled Gaussian state via local Gaussian operations and classical communication. More generally, we show that any hypothetical distillation protocol for Gaussian states involving only Gaussian operations would be a deterministic protocol. Finally, we argue that the protocol considered by Ei...
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G. Giedke, J. Eisert, J.I. Cirac, and M.B. Plenio 1 4. Physikalisches Institut, Universität Stuttgart, Pfaffenwaldring 57, D-70550 Stuttgart, Germany 2 Max-Planck–Institut für Quantenoptik, Hans-Kopfermann-Straße, D-85748 Garching, Germany 3 Institut für Physik, Universität Potsdam, Am Neuen Palais 10, D-14469 Potsdam, Germany 4 QOLS, Blackett Laboratory, Imperial College London, SW7 2BZ London...
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Orbital angular momentum (OAM) entanglement is investigated in the Bessel-Gaussian (BG) basis. Having a readily adjustable radial scale, BG modes provide an alternative basis for OAM entanglement over Laguerre-Gaussian modes. We show that the OAM bandwidth in terms of BG modes can be increased by selection of particular radial wavevectors and leads to a flattening of the spectrum, which allows ...
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ژورنال
عنوان ژورنال: Physical Review Letters
سال: 2002
ISSN: 0031-9007,1079-7114
DOI: 10.1103/physrevlett.89.137904