Stroboscopic generation of topological protection

Trapped neutral atoms offer a powerful route to robust simulation of complex quantum systems. We present here a stroboscopic scheme for realization of a Hamiltonian with n-body interactions on a set of neutral atoms trapped in an addressable optical lattice, using only 1- and 2-body physical operati...

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Veröffentlicht in:Physical review letters 2010-06, Vol.104 (23), p.230501-230501, Article 230501
Hauptverfasser: Herdman, C M, Young, Kevin C, Scarola, V W, Sarovar, Mohan, Whaley, K B
Format: Artikel
Sprache:eng
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Zusammenfassung:Trapped neutral atoms offer a powerful route to robust simulation of complex quantum systems. We present here a stroboscopic scheme for realization of a Hamiltonian with n-body interactions on a set of neutral atoms trapped in an addressable optical lattice, using only 1- and 2-body physical operations together with a dissipative mechanism that allows thermalization to finite temperature or cooling to the ground state. We demonstrate this scheme with application to the toric code Hamiltonian, ground states of which can be used to robustly store quantum information when coupled to a low temperature reservoir.
ISSN:0031-9007
1079-7114
DOI:10.1103/physrevlett.104.230501