Yao, N. Y. and Gorshkov, A. V. and Laumann, C. R. and Läuchli, A. M. and Lukin, M. D. (2013) Realizing Fractional Chern Insulators in Dipolar Spin Systems. Physical Review Letters, 110 (18). Art. No. 185302 . ISSN 0031-9007. doi:10.1103/PhysRevLett.110.185302. https://resolver.caltech.edu/CaltechAUTHORS:20130607-135259730
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Abstract
Strongly correlated quantum systems can exhibit exotic behavior controlled by topology. We predict that the ν=1/2 fractional Chern insulator arises naturally in a two-dimensional array of driven, dipolar-interacting spins. As a specific implementation, we analyze how to prepare and detect synthetic gauge potentials for the rotational excitations of ultracold polar molecules trapped in a deep optical lattice. With the motion of the molecules pinned, under certain conditions, these rotational excitations form a fractional Chern insulating state. We present a detailed experimental blueprint for its realization and demonstrate that the implementation is consistent with near-term capabilities. Prospects for the realization of such phases in solid-state dipolar systems are discussed as are their possible applications.
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Additional Information: | © 2013 American Physical Society. Received 11 January 2013; published 29 April 2013. We gratefully acknowledge the insights of P. Zoller, E. Demler, and S. Bennett. We thank M. Hafezi, A. Chandran, N. Lindner, S. Stellmer, F. Schreck, W. Campbell, A. M. Rey, J. Preskill, K. Hazzard, S. Manmana, E. M. Stoudenmire, S. Todadri, and J. Alicea for helpful discussions. This work was supported, in part, by the NSF, DOE (FG02-97ER25308), CUA, DARPA, AFOSR MURI, NIST, Lawrence Golub Fellowship, Lee A. DuBridge Foundation, IQIM and the Gordon and Betty Moore Foundation. | ||||||||||||||||||||||
Group: | Institute for Quantum Information and Matter | ||||||||||||||||||||||
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Issue or Number: | 18 | ||||||||||||||||||||||
Classification Code: | PACS: 67.85.-d, 05.30.Jp, 71.10.Fd, 73.43.Cd | ||||||||||||||||||||||
DOI: | 10.1103/PhysRevLett.110.185302 | ||||||||||||||||||||||
Record Number: | CaltechAUTHORS:20130607-135259730 | ||||||||||||||||||||||
Persistent URL: | https://resolver.caltech.edu/CaltechAUTHORS:20130607-135259730 | ||||||||||||||||||||||
Usage Policy: | No commercial reproduction, distribution, display or performance rights in this work are provided. | ||||||||||||||||||||||
ID Code: | 38857 | ||||||||||||||||||||||
Collection: | CaltechAUTHORS | ||||||||||||||||||||||
Deposited By: | Tony Diaz | ||||||||||||||||||||||
Deposited On: | 11 Jun 2013 18:24 | ||||||||||||||||||||||
Last Modified: | 09 Nov 2021 23:40 |
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