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Topologically protected quantum state transfer in a chiral spin liquid

Yao, N. Y. and Laumann, C. R. and Gorshkov, A. V. and Weimer, H. and Jiang, L. and Cirac, J. I. and Zoller, P. and Lukin, M. D. (2013) Topologically protected quantum state transfer in a chiral spin liquid. Nature Communications, 4 (3). Art. No. 1585. ISSN 2041-1723. http://resolver.caltech.edu/CaltechAUTHORS:20130531-161337544

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Abstract

Topology plays a central role in ensuring the robustness of a wide variety of physical phenomena. Notable examples range from the current-carrying edge states associated with the quantum Hall and the quantum spin Hall effects to topologically protected quantum memory and quantum logic operations. Here we propose and analyse 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:Article
Related URLs:
URLURL TypeDescription
http://arxiv.org/abs/1110.3788v1arXivDiscussion Paper
http://dx.doi.org/10.1038/ncomms2531DOIArticle
http://www.nature.com/ncomms/journal/v4/n3/full/ncomms2531.htmlPublisherArticle
http://rdcu.be/cnJNPublisherFree ReadCube access
Additional Information:© 2013 Macmillan Publishers Limited. Received 6 Sep 2012; Accepted 20 Jan 2013; Published 12 Mar 2013. 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, the Sherman Fairchild Foundation, IQIM and the Gordon and Betty Moore 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 Programme of the German Academic Exchange Service (DAAD). Author contributions: All authors contributed extensively to all aspects of this work.
Group:IQIM, Institute for Quantum Information and Matter
Funders:
Funding AgencyGrant Number
NSFUNSPECIFIED
Department of Energy (DOE)FG02-97ER25308
CUAUNSPECIFIED
Defense Advanced Research Projects Agency (DARPA)UNSPECIFIED
Air Force Office of Scientific Research (AFOSR)UNSPECIFIED
National Institute of Standards and Technology (NIST)UNSPECIFIED
Lawrence Golub FellowshipUNSPECIFIED
Lee A. DuBridge FoundationUNSPECIFIED
Sherman Fairchild FoundationUNSPECIFIED
Institute for Quantum Information and Matter (IQIM)UNSPECIFIED
Gordon and Betty Moore FoundationUNSPECIFIED
NSF Institute for Theoretical Atomic, Molecular and Optical PhysicsUNSPECIFIED
Smithsonian Astrophysical ObservatoryUNSPECIFIED
German Academic Exchange Service (DAAD) UNSPECIFIED
Record Number:CaltechAUTHORS:20130531-161337544
Persistent URL:http://resolver.caltech.edu/CaltechAUTHORS:20130531-161337544
Official Citation:Yao, N. Y. et al. Topologically protected quantum state transfer in a chiral spin liquid. Nat. Commun. 4:1585 doi: 10.1038/ncomms2531 (2013)
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:38741
Collection:CaltechAUTHORS
Deposited By: Tony Diaz
Deposited On:06 Jun 2013 23:20
Last Modified:23 Mar 2015 18:43

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