Yao, Norman Y. and Laumann, Chris R. and Gorshkov, Alexey V. and Weimer, Hendrik and Jiang, Liang and Cirac, J. Ignacio and Zoller, Peter and Lukin, Mikhail D. (2011) Topologically Protected Quantum State Transfer in a Chiral Spin Liquid. . (Submitted) http://resolver.caltech.edu/CaltechAUTHORS:20120713-091928349
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Topology plays a central role in ensuring the robustness of a wide variety of physical phenomena. Notable examples range from the robust current carrying edge states associated with the quantum Hall and the quantum spin Hall effects to proposals involving topologically protected quantum memory and quantum logic operations. Here, we propose and analyze a topologically protected channel for the transfer of quantum states between remote quantum nodes. In our approach, state transfer is mediated by the edge mode of a chiral spin liquid. We demonstrate that the proposed method is intrinsically robust to realistic imperfections associated with disorder and decoherence. Possible experimental implementations and applications to the detection and characterization of spin liquid phases are discussed.
|Item Type:||Report or Paper (Discussion Paper)|
|Additional Information:||We gratefully acknowledge conversations with T. Kitagawa, S. Bennett, P. Maurer, E. Altman, E. Demler, S. Sachdev, M. Freedman, and J. Preskill. This work was supported, in part, by the NSF, DOE (FG02-97ER25308), CUA, DARPA, AFOSR MURI, NIST, Lawrence Golub Fellowship, Lee A. DuBridge Foundation and the Sherman Fairchild Foundation. H.W. was supported by the National Science Foundation through a grant for the Institute for Theoretical Atomic, Molecular and Optical Physics at Harvard University and the Smithsonian Astrophysical Observatory and by a fellowship within the Postdoc Program of the German Academic Exchange Service (DAAD).|
|Group:||IQIM, Institute for Quantum Information and Matter|
|Usage Policy:||No commercial reproduction, distribution, display or performance rights in this work are provided.|
|Deposited By:||Tony Diaz|
|Deposited On:||19 Jul 2012 22:03|
|Last Modified:||26 Dec 2012 15:31|
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