Optimizing local protocols for implementing bipartite nonlocal unitary gates using prior entanglement and classical communication

Journal Article · Tue Jun 15 00:00:00 EDT 2010 · Physical Review. A

DOI:https://doi.org/10.1103/PHYSREVA.81.062316· OSTI ID:21413195

Cohen, Scott M ^[1]

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1. Department of Physics, Duquesne University, Pittsburgh, Pennsylvania 15282 (United States) and Department of Physics, Carnegie-Mellon University, Pittsburgh, Pennsylvania 15213 (United States)

We present a method of optimizing recently designed protocols for implementing an arbitrary nonlocal unitary gate acting on a bipartite system. These protocols use only local operations and classical communication with the assistance of entanglement, and they are deterministic while also being 'one-shot', in that they use only one copy of an entangled resource state. The optimization minimizes the amount of entanglement needed, and also the amount of classical communication, and it is often the case that less of each of these resources is needed than with an alternative protocol using two-way teleportation.

• OSTI ID: 21413195
• Journal Information: Physical Review. A, Vol. 81, Issue 6; Other Information: DOI: 10.1103/PhysRevA.81.062316; (c) 2010 The American Physical Society; ISSN 1050-2947
• Country of Publication: United States
• Language: English

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
COMMUNICATIONS
OPTIMIZATION
QUANTUM ENTANGLEMENT
QUANTUM TELEPORTATION