Harrow, Aram and Hayden, Patrick and Leung, Debbie (2004) Superdense Coding of Quantum States. Physical Review Letters, 92 (18). Art. No. 187901. ISSN 0031-9007. http://resolver.caltech.edu/CaltechAUTHORS:HARprl04
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We describe a method for nonobliviously communicating a 2l-qubit quantum state by physically transmitting l + o(l) qubits, and by consuming l ebits of entanglement plus some shared random bits. In the nonoblivious scenario, the sender has a classical description of the state to be communicated. Our method can be used to communicate states that are pure or entangled with the sender's system; l + o(l) and 3l + o(l) shared random bits are sufficient, respectively.
|Additional Information:||©2004 The American Physical Society (Received 30 August 2003; published 4 May 2004) A.H. acknowledges funding from the NSA and ARDA under ARO Contract No. DAAD19-01-1-06. P.H. and D.L. acknowledge the support of the Sherman Fairchild, the Richard Tolman, and the Croucher foundations, as well as the U.S. NSF under Grant No. EIA-0086038.|
|Subject Keywords:||quantum communication; encoding; quantum entanglement|
|Usage Policy:||No commercial reproduction, distribution, display or performance rights in this work are provided.|
|Deposited By:||Archive Administrator|
|Deposited On:||25 Aug 2006|
|Last Modified:||26 Dec 2012 08:59|
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