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Title: Measurement-based approach to entanglement generation in coupled quantum dots
Authors: Kolli, A.
Lovett, B.W.
Benjamin, S.C. 
Stace, T.M.
Issue Date: 5-Jan-2009
Citation: Kolli, A., Lovett, B.W., Benjamin, S.C., Stace, T.M. (2009-01-05). Measurement-based approach to entanglement generation in coupled quantum dots. Physical Review B - Condensed Matter and Materials Physics 79 (3) : -. ScholarBank@NUS Repository.
Abstract: The remarkable phenomenon of measurement-induced quantum entanglement has recently been demonstrated between noninteracting atomic systems. In the solid state, the technique may offer a new means of harnessing the strong interactions between neighboring units without the need for precise control over interactions. Recently, we proposed a method for optical parity measurements in a coupled quantum dot system. Here we perform a comprehensive analytic and numerical study to determine the feasibility of realizing this method using existing technology. We calculate the effects of possible error sources including nonideal photon detectors, ineffective spin-selective excitation, and dot distinguishability (both spatial and spectral). Furthermore, we present an experimental approach for verifying the success of the parity measurement. We conclude that experimental realization of the process should be feasible immediately. © 2009 The American Physical Society.
Source Title: Physical Review B - Condensed Matter and Materials Physics
ISSN: 10980121
DOI: 10.1103/PhysRevB.79.035315
Appears in Collections:Staff Publications

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