Universal Dephasing of Many-Body Rabi Oscillations of Atoms in One-Dimensional Traps

Sebastian D. Huber and Ehud Altman
Phys. Rev. Lett. 103, 160402 – Published 15 October 2009

Abstract

We study a quantum quench in a system of two coupled one-dimensional tubes of interacting atoms. After the quench the system is out of equilibrium and oscillates between the tubes with a frequency determined by microscopic parameters. Despite the high energy at which the system is prepared we find an emergent long time scale responsible for the dephasing of the oscillations and a transition at which this time scale diverges. We show that the universal properties of the dephasing and the transition arise from an infrared orthogonality catastrophe. Furthermore, we show how this universal behavior is realized in a realistic model of fermions with attractive interactions.

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  • Received 3 July 2009

DOI:https://doi.org/10.1103/PhysRevLett.103.160402

©2009 American Physical Society

Authors & Affiliations

Sebastian D. Huber and Ehud Altman

  • Department of Condensed Matter Physics, The Weizmann Institute of Science, Rehovot, 76100, Israel

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Issue

Vol. 103, Iss. 16 — 16 October 2009

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