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Publication Details
AFRICAN RESEARCH NEXUS
SHINING A SPOTLIGHT ON AFRICAN RESEARCH
physics and astronomy
Open quantum walks on graphs
Physics Letters, Section A: General, Atomic and Solid State Physics, Volume 376, No. 18, Year 2012
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Description
Open quantum walks (OQW) are formulated as quantum Markov chains on graphs. It is shown that OQWs are a very useful tool for the formulation of dissipative quantum computing algorithms and for dissipative quantum state preparation. In particular, single qubit gates and the CNOT-gate are implemented as OQWs on fully connected graphs. Also, dissipative quantum state preparation of arbitrary single qubit states and of all two-qubit Bell-states is demonstrated. Finally, the discrete time version of dissipative quantum computing is shown to be more efficient if formulated in the language of OQWs. © 2012 Elsevier B.V. All rights reserved.
Authors & Co-Authors
Attal, Stèphane
France, Villeurbanne
Institut Camille Jordan
Petruccione, Francesco
South Africa, Durban
University of Kwazulu-natal
Sinayskiy, Ilya
South Africa, Durban
University of Kwazulu-natal
Statistics
Citations: 60
Authors: 3
Affiliations: 2
Identifiers
Doi:
10.1016/j.physleta.2012.03.040
ISSN:
03759601