Nonequilibrium phonon dynamics in trapped-ion systems

Dutta, T. ; Mukherjee, M. ; Sengupta, K. (2012) Nonequilibrium phonon dynamics in trapped-ion systems Physical Review A, 85 (6). 063401_1-063401_5. ISSN 1050-2947

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Official URL: http://pra.aps.org/abstract/PRA/v85/i6/e063401

Related URL: http://dx.doi.org/10.1103/PhysRevA.85.063401

Abstract

We propose a concrete experiment to probe the nonequilibrium local dynamics of the one-dimensional Bose-Hubbard model using a trapped ion system consisting of a linear chain of few ions prepared in a state of transverse motional mode which corresponds to a fixed number of phonons per ion. These phonons are well known to be described by an effective Bose-Hubbard model. We propose a protocol which leads to a sudden local sign reversal of the on-site interaction strength of this Hubbard model at one of the sites and demonstrate that the subsequent nonequilibrium dynamics of the model can be experimentally probed by measuring the time-dependent phonon number in a specific motional state of the ions. We back our experimental proposal with exact numerical calculation of the dynamics of a Bose-Hubbard model subsequent to a local quench.

Item Type:Article
Source:Copyright of this article belongs to American Physical Society.
ID Code:94394
Deposited On:15 Nov 2012 06:04
Last Modified:15 Nov 2012 06:04

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