Quantum capacity of lossy channel with additive classical Gaussian noise : a perturbation approach

Details Quantum capacity of lossy channel with additive classical Gaussian noise : a perturbation approach Quantum capacity of lossy channel with additive classical Gaussian noise : a perturbation approach

2007-10-02

arxiv.org/abs/0710.0417v1

Physics

Quantum Physics

4 pages

Scientific paper

For a quantum channel of additive Gaussian noise with loss, in the general
case of $n$ copies input, we show that up to first order perturbation, any
non-Gaussian perturbation to the product thermal state input has a less quantum
information transmission rate when the input energy tend to infinitive.

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