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Showing 2010 · quant-phShow all
3 papers · 2 filters
quant-ph2010★ 23 cited
Entropy reduction of quantum measurements
M. E. Shirokov
It is observed that the entropy reduction (the information gain in the initial terminology) of an efficient (ideal or pure) quantum measurement coincides with the generalized quant…
quant-ph2010★ 31 cited
The optimal unitary dilation for bosonic Gaussian channels
Filippo Caruso, Jens Eisert, Vittorio Giovannetti +1
A generic quantum channel can be represented in terms of a unitary interaction between the information-carrying system and a noisy environment. Here, the minimal number of quantum…
quant-ph2010★ 36 cited
Generalized minimal output entropy conjecture for one-mode Gaussian channels: definitions and some exact results
V. Giovannetti, A. S. Holevo, S. Lloyd +1
A formulation of the generalized minimal output entropy conjecture for Gaussian channels is presented. It asserts that, for states with fixed input entropy, the minimal value of th…