Realistic Time-Reversal Invariant Topological Insulators With Neutral Atoms - Condensed Matter > Quantum GasesReport as inadecuate




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Abstract: We lay out an experiment to realize time-reversal invariant topologicalinsulators in alkali atomic gases. We introduce an original method tosynthesize a gauge field in the near-field of an atom-chip, which effectivelymimics the effects of spin-orbit coupling and produces quantum spin-Hallstates. We also propose a feasible scheme to engineer sharp boundaries wherethe hallmark edge states are localized. Our multi-band system has a largeparameter space exhibiting a variety of quantum phase transitions betweentopological and normal insulating phases. Due to their remarkable versatility,cold-atom systems are ideally suited to realize topological states of matterand drive the development of topological quantum computing.



Author: N. Goldman, I. Satija, P. Nikolic, A. Bermudez, M. A. Martin-Delgado, M. Lewenstein, I. B. Spielman

Source: https://arxiv.org/







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