Superdense coding: Difference between revisions

Revision as of 04:00, 10 June 2006

Revision as of 05:08, 10 June 2006

Line 1:

{{merge|Quantum dense coding}}

'''Superdense coding''' is a technique used in [[quantum information theory]] to send two bits of classical information using only one qubit, with the aid of [[Quantum entanglement|entanglement]].

Line 34 ⟶ 32:

So, depending on the message she would like to send, Alice performs one of the four local operations given above and sends her qubit to Bob. By performing a projective measurement in the Bell basis on the two particle system, Bob decodes the desired message.

==References==

* C. Bennett and S.J. Wiesner. ''Communication via one- and two-particle operators on Einstein-Podolsky-Rosen states.'' Phys. Rev. Lett., 69:2881, 1992[http://prola.aps.org/abstract/PRL/v69/i20/p2881_1]

[[Category:Quantum information science]]