Time-correlated quantum amplitude-damping channel
Authors:
- 27 June 2003
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review A
- Vol. 67 (6) , 064301
Abstract
We analyze the problem of sending classical information through qubit channels where successive uses of the channel are correlated. This work extends the analysis of Macchiavello and Palma to the case of a non-Pauli channel—the amplitude damping channel. Using the channel description outlined by Daffer et al., we derive the correlated amplitude damping channel. We obtain a result similar to that obtained by Macchiavello and Palma, that is, under certain conditions on the degree of channel memory, the use of entangled input signals may enhance the information transmission compared to the use of product input signals.Keywords
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This publication has 5 references indexed in Scilit:
- Entanglement-enhanced information transmission over a quantum channel with correlated noisePhysical Review A, 2002
- Minimal entropy of states emerging from noisy quantum channelsIEEE Transactions on Information Theory, 2001
- Quantum entanglement and classical communication through a depolarizing channelJournal of Modern Optics, 2000
- The capacity of the quantum channel with general signal statesIEEE Transactions on Information Theory, 1998
- Sending classical information via noisy quantum channelsPhysical Review A, 1997