Capacities of Grassmann channels
نویسندگان
چکیده
منابع مشابه
Quantum capacities of bosonic channels.
We investigate the capacity of bosonic quantum channels for the transmission of quantum information. We calculate the quantum capacity for a class of Gaussian channels, including channels describing optical fibers with photon losses, by proving that Gaussian encodings are optimal. For arbitrary channels we show that achievable rates can be determined from few measurable parameters by proving th...
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Quantum amplifier channels are at the core of several physical processes in nature. Not only do they model the optical process of spontaneous parametric down-conversion, but the Bogoliubov transformation corresponding to an amplifier channel also describes the physics of the dynamical Casimir effect in superconducting circuits, the Unruh effect, and Hawking radiation. Here we study the communic...
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We study optimal rates for quantum communication over a single use of a channel, which itself can correspond to a finite number of uses of a channel with correlated noise. The corresponding capacity is often referred to as the one-shot capacity. Here, in particular, we consider the protocol in which Alice sends one part of a maximally entangled state through a quantum channel to Bob, who then p...
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ژورنال
عنوان ژورنال: Journal of Mathematical Physics
سال: 2011
ISSN: 0022-2488,1089-7658
DOI: 10.1063/1.3597233