Phys. Rev. A 66, 024308 (2002) [3 pages]Quantum phase gate for photonic qubits using only beam splitters and postselectionReceived 18 November 2001; published 8 August 2002 We show that a beam splitter of reflectivity one-third can be used to realize a quantum phase gate operation if only the outputs conserving the number of photons on each side are postselected. © 2002 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevA.66.024308
DOI:
10.1103/PhysRevA.66.024308
PACS:
03.67.Lx, 42.50.-p
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