Measurement-induced generation of spatial entanglement in a two-dimensional quantum walk with single-qubit coin
Di Franco, C. McGettrick, M. Machida, T. Busch, Th.
Di Franco, C.
McGettrick, M.
Machida, T.
Busch, Th.
Publication Date
2013-07-01
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Article
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Di Franco, C. McGettrick, M.; Machida, T.; Busch, Th. (2013). Measurement-induced generation of spatial entanglement in a two-dimensional quantum walk with single-qubit coin. Journal of Computational and Theoretical Nanoscience 10 (7), 1613-1616
Abstract
One of the proposals for the exploitation of two-dimensional quantum walks has been the efficient generation of entanglement. Unfortunately, the technological effort required for the experimental realization of standard two-dimensional quantum walks is significantly demanding. In this respect, an alternative scheme with less challenging conditions has been recently studied, particularly in terms of spatial-entanglement generation [C. Di Franco, M. Mc Gettrick, and Th. Busch, Phys. Rev. Lett. 106, 080502 (2011)]. Here, we extend the investigation to a scenario where a measurement is performed on the coin degree of freedom after the evolution, allowing a further comparison with the standard two-dimensional Grover walk.
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American Scientific Publishers
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Attribution-NonCommercial-NoDerivs 3.0 Ireland