Entanglement-enhanced information transmission over a quantum channel with correlated noise

2001/07/09 by Chiara Macchiavello, G. Massimo Palma · 4 citations
Computer Science · Mathematics · Physics and Astronomy · #Amplitude damping channel #Artificial intelligence #Binary erasure channel #Channel (broadcasting) #Channel capacity #Combinatorics #Computer network #Computer science #Information transmission #Mathematics #Noise (video) #Physics #Quantum #Quantum Computing Algorithms and Architecture #Quantum Information and Cryptography #Quantum Mechanics and Applications #Quantum channel #Quantum discord #Quantum entanglement #Quantum mechanics #Statistical physics #Telecommunications #Topology (electrical circuits) #Transmission (telecommunications) #quant-ph

paper · pdf · doi:10.1103/physreva.65.050301

arxiv created 2001/07/09 · openalex publication_date 2002/04/17 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05

Abstract

We show that entanglement is a useful resource to enhance the mutual information of the depolarizing channel when the noise on consecutive uses of the channel has some partial correlations. We obtain a threshold in the degree of memory above which a higher amount of classical information is transmitted with entangled signals.

Citations

• Quantum computers and dissipation

Cited by

• Quantum capacity of an amplitude-damping channel with memory
• Quantum channels with a finite memory
• Spin chain model for correlated quantum channels
• Protecting temporal correlations of two-qubit states using quantum channels with memory