Multiparticle decoherence-free subspaces in extended systems

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Title Multiparticle decoherence-free subspaces in extended systems
Author Karasik, Raisa; Marzlin, Karl-Peter; Sanders, Barry C.; Whaley, K. Birgitta
Journal Name Physical Review A
Year Published 2007
Place of publication United States
Publisher American Physical Society
Abstract We develop a method to determine spatial configurations to realize decoherence-free subspaces for spatially extended multiparticle systems. We have assumed normal reservoir behavior including translational invariance of the reservoir and preparation in stationary states or mixture thereof and weak Markovian system-reservoir coupling that requires energy transfer. One important outcome of our method is a proof that there does not exist a multiparticle decoherence-free subspace in such systems except in the limit that the spatial extent of the system becomes infinitesimal.
Peer Reviewed Yes
Published Yes
Volume 76
Page from 012331-1
Page to 012331-12
ISSN 1050-2947
Date Accessioned 2010-07-14
Date Available 2010-07-30T07:21:08Z
Language en_AU
Faculty Faculty of Science, Environment, Engineering and Technology
Subject Quantum Information, Computation and Communication
URI http://hdl.handle.net/10072/33120
Publication Type Journal Articles (Refereed Article)
Publication Type Code c1x

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