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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Abstract
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.
| Item Type: | Article |
|---|---|
| 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 |
| Record Number: | CaltechAUTHORS:HARprl04 |
| Persistent URL: | http://resolver.caltech.edu/CaltechAUTHORS:HARprl04 |
| Alternative URL: | http://dx.doi.org/10.1103/PhysRevLett.92.187901 |
| Usage Policy: | No commercial reproduction, distribution, display or performance rights in this work are provided. |
| Metadata Review: | All Records > Caltech Library Services |
| ID Code: | 4508 |
| Collection: | CaltechAUTHORS |
| Deposited By: | Archive Administrator |
| Deposited On: | 25 Aug 2006 |
| Last Modified: | 29 Nov 2009 22:08 |
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