Information transmission via entangled quantum states in Gaussian channels with memory
arXiv:quant-ph/0508197 · doi:10.1142/S021974990600189X
Abstract
Gaussian quantum channels have recently attracted a growing interest, since they may lead to a tractable approach to the generally hard problem of evaluating quantum channel capacities. However, the analysis performed so far has always been restricted to memoryless channels. Here, we consider the case of a bosonic Gaussian channel with memory, and show that the classical capacity can be significantly enhanced by employing entangled input symbols instead of product symbols.
13 pages, 5 figures, Workshop on Quantum entanglement in physical and information sciences, Pisa, December 14-18, 2004
References in corpus (5)
- Minimum output entropy of bosonic channels: a conjecture
- Entangled states maximize the two qubit channel capacity for some Pauli channels with memory
- Quantum entanglement enhances the capacity of bosonic channels with memory
- Multiplicativity of maximal output purities of Gaussian channels under Gaussian inputs
- Minimum Renyi and Wehrl entropies at the output of bosonic channels