Quantum Gaussian channels with additive correlated classical noise
نویسندگان
چکیده
منابع مشابه
Classical capacity of quantum channels with general Markovian correlated noise
The classical capacity of a quantum channel with arbitrary Markovian correlated noise is evaluated. For an irreducible and aperiodic Markov Chain, the channel is forgetful, and one retrieves the known expression [15] for the capacity. For the more general case of a channel with long-term memory, which corresponds to a Markov chain which does not converge to equilibrium, the capacity is expresse...
متن کاملGaussian capacity of the quantum bosonic memory channel with additive correlated Gaussian noise
We present an algorithm for calculation of the Gaussian classical capacity of a quantum bosonic memory channel with additive Gaussian noise. The algorithm, restricted to Gaussian input states, is applicable to all channels with noise correlations obeying certain conditions and works in the full input energy domain, beyond previous treatments of this problem. As an illustration, we study the opt...
متن کاملQuantum capacity of lossy channel with additive classical Gaussian noise : a perturbation approach
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. PACS number(s): 03.67.-a, 42.50.Dv, 89.70.+c
متن کاملNearest neighbor decoding for additive non-Gaussian noise channels
We study the performance of a transmission scheme employing random Gaussian codebooks and nearest neighbor decoding over a power limited additive non-Gaussian noise channel. We show that the achievable rates depend on the noise distribution only via its power and thus coincide with the capacity region of a white Gaussian noise channel with signal and noise power equal to those of the original c...
متن کاملThe conditional Entropy Power Inequality for quantum additive noise channels
We prove the quantum conditional Entropy Power Inequality for quantum additive noise channels. This inequality lower bounds the quantum conditional entropy of the output of an additive noise channel in terms of the quantum conditional entropies of the input state and the noise when they are conditionally independent given the memory. We also show that this conditional Entropy Power Inequality i...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Quantum Information and Computation
سال: 2007
ISSN: 1533-7146,1533-7146
DOI: 10.26421/qic7.3-6