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71640 |
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|a Garcia-Patron Sanchez, Raul
|e author
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|a Massachusetts Institute of Technology. Department of Electrical Engineering and Computer Science
|e contributor
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|a Massachusetts Institute of Technology. Department of Mechanical Engineering
|e contributor
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|a Massachusetts Institute of Technology. Research Laboratory of Electronics
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|a Shapiro, Jeffrey H.
|e contributor
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|a Garcia-Patron Sanchez, Raul
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|a Navarrete-Benlloch, Carlos
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|a Lloyd, Seth
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|a Shapiro, Jeffrey H.
|e contributor
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|a Cerf, Nicolas J.
|e contributor
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|a Navarrete-Benlloch, Carlos
|e author
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|a Lloyd, Seth
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|a Shapiro, Jeffrey H.
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|a Cerf, Nicolas J.
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|a Majorization Theory Approach to the Gaussian Channel Minimum Entropy Conjecture
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|b American Physical Society,
|c 2012-07-17T12:43:02Z.
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| 856 |
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|z Get fulltext
|u http://hdl.handle.net/1721.1/71640
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|a A long-standing open problem in quantum information theory is to find the classical capacity of an optical communication link, modeled as a Gaussian bosonic channel. It has been conjectured that this capacity is achieved by a random coding of coherent states using an isotropic Gaussian distribution in phase space. We show that proving a Gaussian minimum entropy conjecture for a quantum-limited amplifier is actually sufficient to confirm this capacity conjecture, and we provide a strong argument towards this proof by exploiting a connection between quantum entanglement and majorization theory.
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|a Alexander von Humboldt-Stiftung
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|a Belgian National Foundation for Scientific Research
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|a European Union (Project No. FIS2008-06024-C03-01)
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|a W. M. Keck Foundation Center for Extreme Quantum Information Theory
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|a Spain. Ministerio de Ciencia e Innovación (MICINN) (FPU)
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|a United States. Office of Naval Research (Basic Research Challenge Program)
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|a Fondation pour la recherche strategique (France) (HIPERCOM)
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|a en_US
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|a Article
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|t Physical Review Letters
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