Volume 70, Number 6, June 2005
|Page(s)||719 - 725|
|Published online||13 May 2005|
Information transmission through lossy bosonic memory channels
Dipartimento di Fisica, Università di Lecce - I-73100 Lecce, Italy
2 INFN, Sezione di Lecce - I-73100 Lecce, Italy
3 NEST-INFM & Scuola Normale Superiore - I-56126 Pisa, Italy
4 Dipartimento di Fisica, Università di Camerino - I-62032 Camerino, Italy
5 INFN, Sezione di Perugia - I-06123 Perugia, Italy
Accepted: 20 April 2005
We study the information transmission through a quantum channel, defined over a continuous alphabet and losing its energy en route, in the presence of correlated noise among different channel uses. We then show that entangled inputs improve the rate of transmission of such a channel.
PACS: 03.65.Ud – Entanglement and quantum nonlocality (e.g. EPR paradox, Bell's inequalities, GHZ states, etc.) / 03.67.Hk – Quantum communication / 89.70.+c – Information theory and communication theory
© EDP Sciences, 2005
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