• Open Access

Quantum state preparation for coupled period tripling oscillators

Niels Lörch, Yaxing Zhang, Christoph Bruder, and M. I. Dykman
Phys. Rev. Research 1, 023023 – Published 23 September 2019

Abstract

We investigate the quantum transition to a correlated state of coupled oscillators in the regime where they display period tripling in response to a drive at triple the eigenfrequency. Correlations are formed between the discrete oscillation phases of individual oscillators. The evolution toward the ordered state is accompanied by the transient breaking of the symmetry between seemingly equivalent configurations. We attribute this to the nontrivial geometric phase that characterizes period tripling. We also show that the Wigner distribution of a single damped quantum oscillator can display a minimum at the classically stable zero-amplitude state.

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  • Received 21 April 2019

DOI:https://doi.org/10.1103/PhysRevResearch.1.023023

Published by the American Physical Society under the terms of the Creative Commons Attribution 4.0 International license. Further distribution of this work must maintain attribution to the author(s) and the published article's title, journal citation, and DOI.

Published by the American Physical Society

Physics Subject Headings (PhySH)

Quantum Information, Science & TechnologyAtomic, Molecular & Optical

Authors & Affiliations

Niels Lörch1, Yaxing Zhang2, Christoph Bruder1, and M. I. Dykman3

  • 1Department of Physics, University of Basel, Klingelbergstrasse 82, CH-4056 Basel, Switzerland
  • 2Department of Physics, Yale University, New Haven, Connecticut 06511, USA
  • 3Department of Physics and Astronomy, Michigan State University, East Lansing, Michigan 48824, USA

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Vol. 1, Iss. 2 — September 2019

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