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Title: Entangling unstable optically active matter qubits
Authors: Matsuzaki, Y.
Benjamin, S.C. 
Fitzsimons, J.
Issue Date: 30-Jun-2011
Citation: Matsuzaki, Y., Benjamin, S.C., Fitzsimons, J. (2011-06-30). Entangling unstable optically active matter qubits. Physical Review A - Atomic, Molecular, and Optical Physics 83 (6) : -. ScholarBank@NUS Repository.
Abstract: In distributed quantum computation, small devices composed of a single or a few qubits are networked together to achieve a scalable machine. Typically, there is an optically active matter qubit at each node, so that photons are exploited to achieve remote entanglement. However, in many systems the optically active states are unstable or poorly defined. We report a scheme to perform a high-fidelity entanglement operation even given severe instability. The protocol exploits the existence of optically excited states for phase acquisition without actually exciting those states; it functions with or without cavities and does not require number-resolving detectors. © 2011 American Physical Society.
Source Title: Physical Review A - Atomic, Molecular, and Optical Physics
ISSN: 10502947
DOI: 10.1103/PhysRevA.83.060303
Appears in Collections:Staff Publications

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