Quantum quench in an atomic one-dimensional Ising chain

F. Meinert, M.J. Mark, E. Kirilov, K. Lauber, P. Weinmann, A.J. Daley, H.-C. Nägerl

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Abstract

We study nonequilibrium dynamics for an ensemble of tilted one-dimensional atomic Bose-Hubbard chains after a sudden quench to the vicinity of the transition point of the Ising paramagnetic to antiferromagnetic quantum phase transition. The quench results in coherent oscillations for the orientation of effective Ising spins, detected via oscillations in the number of doubly occupied lattice sites. We characterize the quench by varying the system parameters. We report significant modification of the tunneling rate induced by interactions and show clear evidence for collective effects in the oscillatory response.
Original languageEnglish
Article number053003
Number of pages5
JournalPhysical Review Letters
Volume111
Issue number5
DOIs
Publication statusPublished - 31 Jul 2013

Keywords

  • Bose-Hubbard chains
  • quantum quench
  • ising chain

Cite this

Meinert, F., Mark, M. J., Kirilov, E., Lauber, K., Weinmann, P., Daley, A. J., & Nägerl, H-C. (2013). Quantum quench in an atomic one-dimensional Ising chain. Physical Review Letters, 111(5), [053003 ]. https://doi.org/10.1103/PhysRevLett.111.053003