Improved transfer of quantum information using a local memory

Vittorio Giovannetti, Daniel Burgarth

Research output: Contribution to journalArticlepeer-review

71 Citations (Scopus)


We demonstrate that the quantum communication between two parties can be significantly improved if the receiver is allowed to store the received signals in a quantum memory before decoding them. In the limit of an infinite memory, the transfer is perfect. We prove that this scheme allows the transfer of arbitrary multipartite states along Heisenberg chains of spin-1/2 particles with random coupling strengths.
Original languageEnglish
Article number030501
Pages (from-to)030501-1-030501-4
Number of pages4
JournalPhysical Review Letters
Issue number3
Publication statusPublished - 27 Jan 2006
Externally publishedYes


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