A Caltech Library Service

Superdense Coding of Quantum States

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. doi:10.1103/PhysRevLett.92.187901.

See Usage Policy.


Use this Persistent URL to link to this item:


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
Related URLs:
URLURL TypeDescription
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
Issue or Number:18
Record Number:CaltechAUTHORS:HARprl04
Persistent URL:
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:4508
Deposited By: Archive Administrator
Deposited On:25 Aug 2006
Last Modified:08 Nov 2021 20:17

Repository Staff Only: item control page