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Long-Lasting Exponential Spreading in Periodically Driven Quantum Systems

Jiao Wang, Italo Guarneri, Giulio Casati, and Jiangbin Gong
Phys. Rev. Lett. 107, 234104 – Published 30 November 2011
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    Abstract

    Using a dynamical model relevant to cold-atom experiments, we show that long-lasting exponential spreading of wave packets in momentum space is possible. Numerical results are explained via a pseudoclassical map, both qualitatively and quantitatively. Possible applications of our findings are also briefly discussed.

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    • Received 28 July 2011

    DOI:https://doi.org/10.1103/PhysRevLett.107.234104

    © 2011 American Physical Society

    Authors & Affiliations

    Jiao Wang1, Italo Guarneri2,3, Giulio Casati2,4,5, and Jiangbin Gong6,7

    • 1Department of Physics and Institute of Theoretical Physics and Astrophysics, Xiamen University, Xiamen 361005, China
    • 2Center for Nonlinear and Complex Systems, Università degli Studi dell’Insubria, Via Valleggio 11, 22100 Como, Italy
    • 3Istituto Nazionale di Fisica Nucleare, Sezione di Pavia, via Bassi 6, 27100 Pavia, Italy
    • 4Consorzio Nazionale Interuniversitario per le Scienze Fisiche della Materia, e CNR-INFM
    • 5Istituto Nazionale di Fisica Nucleare, Sezione di Milano, via Celoria 16, 20133 Milano, Italy
    • 6Department of Physics and Center for Computational Science and Engineering, National University of Singapore, Singapore 117542, Republic of Singapore
    • 7NUS Graduate School for Integrative Sciences and Engineering, Singapore 117597, Republic of Singapore

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    Issue

    Vol. 107, Iss. 23 — 2 December 2011

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