Phys. Rev. A 72, 052309 (2005) [5 pages]Controlled unitary operation between two distant atomsReceived 26 January 2005; published 9 November 2005 We propose a scheme for implementing a controlled unitary gate between two distant atoms directly communicating through a quantum transmission line. To achieve our goal, only a series of several coherent pulses are applied to the atoms. Our scheme thus requires no ancilla atomic qubit. The simplicity of our scheme may significantly improve the scalability of quantum computers based on trapped neutral atoms or ions. © 2005 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevA.72.052309
DOI:
10.1103/PhysRevA.72.052309
PACS:
03.67.Lx, 03.67.Hk, 42.50.Pq
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