Measurement-based approach to entanglement generation in coupled quantum dots

Details Measurement-based approach to entanglement generation in coupled quantum dots Measurement-based approach to entanglement generation in coupled quantum dots

2008-01-18

arxiv.org/abs/0801.2873v1

Phys. Rev. B 79, 035315 (2009)

Physics

Quantum Physics

Scientific paper

10.1103/PhysRevB.79.035315

Measurements provide a novel mechanism for generating the entanglement resource necessary for performing scalable quantum computation. Recently, we proposed a method for performing parity measurements in a coupled quantum dot system. In this paper we generalise this scheme and perform a comprehensive analytic and numerical study of environmental factors. We calculate the effects of possible error sources including non-ideal 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.

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