We study a dephasing channel with memory, modelled by a multimode environment of oscillators. Focusing on the case of two channel uses, we show that memory effects can enhance the amount of coherent quantum information transmitted down the channel. We also propose a coding-decoding scheme that takes advantage of memory to improve the fidelity of transmission.
Memory effects in a Markovian chain dephasing channel
FALCI, Giuseppe
2008-01-01
Abstract
We study a dephasing channel with memory, modelled by a multimode environment of oscillators. Focusing on the case of two channel uses, we show that memory effects can enhance the amount of coherent quantum information transmitted down the channel. We also propose a coding-decoding scheme that takes advantage of memory to improve the fidelity of transmission.File in questo prodotto:
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