6 citations · 6 across the 1 of their papers we have counts for
5 papers
Classical capacity of phase-sensitive Gaussian quantum channels
Joachim Schäfer, Evgueni Karpov, Oleg V. Pilyavets +1
The full solution of the optimization problem giving the Gaussian capacity of the single-mode fiducial Gaussian quantum channel is provided. Since it was shown that the Gaussian ca…
Equivalence Relations for the Classical Capacity of Single-Mode Gaussian Quantum channels
Joachim Schäfer, Evgueni Karpov, Raúl García-Patrón +2
We prove the equivalence of an arbitrary single-mode Gaussian quantum channel and a newly defined fiducial channel preceded by a phase shift and followed by a Gaussian unitary oper…
Gaussian matrix-product states for coding in bosonic communication channels
Joachim Schäfer, Evgueni Karpov, Nicolas J. Cerf
The communication capacity of Gaussian bosonic channels with memory has recently attracted much interest. Here, we investigate a method to prepare the multimode entangled input sym…
Gaussian capacity of the quantum bosonic channel with additive correlated Gaussian noise
Joachim Schäfer, Evgueni Karpov, Nicolas J. Cerf
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 i…
Capacity of a bosonic memory channel with Gauss-Markov noise
Joachim Schäfer, David Daems, Evgueni Karpov +1
We address the classical capacity of a quantum bosonic memory channel with additive noise, subject to an input energy constraint. The memory is modeled by correlated noise emerging…