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Article Dans Une Revue Physical Review A : Atomic, molecular, and optical physics [1990-2015] Année : 2009

Observation of the Anderson Metal-Insulator Transition with Atomic Matter Waves: Theory and Experiment

Résumé

Using a cold atomic gas exposed to laser pulses -- a realization of the chaotic quasiperiodic kicked rotor with three incommensurate frequencies -- we study experimentally and theoretically the Anderson metal-insulator transition in three dimensions. Sensitive measurements of the atomic wavefunction and the use of finite-size scaling techniques make it possible to unambiguously demonstrate the existence of a quantum phase transition and to measure its critical exponents. By taking proper account of systematic corrections to one-parameter scaling, we show the universality of the critical exponent $\nu=1.59\pm0.01,$ which is found to be equal to the one previously computed for the Anderson model.
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hal-00405643 , version 1 (20-07-2009)

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Gabriel Lemarié, Julien Chabé, Pascal Szriftgiser, Jean-Claude Garreau, Benoît Grémaud, et al.. Observation of the Anderson Metal-Insulator Transition with Atomic Matter Waves: Theory and Experiment. Physical Review A : Atomic, molecular, and optical physics [1990-2015], 2009, 80 (4), pp.043626. ⟨10.1103/PhysRevA.80.043626⟩. ⟨hal-00405643⟩
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