Topologically Protected Quantum State Transfer in a Chiral Spin Liquid

TitleTopologically Protected Quantum State Transfer in a Chiral Spin Liquid
Publication TypeJournal Article
Year of Publication2013
AuthorsYao, NY, Laumann, CR, Gorshkov, AV, Weimer, H, Jiang, L, J. Cirac, I, Zoller, P, Lukin, MD
JournalNature Communications
Date Published2013/3/12

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.

Short TitleNat Comms