Avoided crossing and sub-Fourier-sensitivity in driven quantum systems

Cubero, David and Robb, Gordon R.M. and Renzoni, Ferruccio (2018) Avoided crossing and sub-Fourier-sensitivity in driven quantum systems. Physical Review Letters, 121 (21). 213904. ISSN 1079-7114 (https://doi.org/10.1103/PhysRevLett.121.213904)

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Abstract

The response of a linear system to an external perturbation is governed by the Fourier limit, with the inverse of the interaction time constituting a lower limit for the system bandwidth. This does not hold for nonlinear systems, which can thus exhibit sub-Fourier-behavior. The present Letter identifies a mechanism for sub-Fourier-sensitivity in driven quantum systems, which relies on avoided crossing between Floquet states. Features up to three orders of magnitude finer than the Fourier limit are presented.

ORCID iDs

Cubero, David, Robb, Gordon R.M. ORCID logoORCID: https://orcid.org/0000-0002-3004-5926 and Renzoni, Ferruccio;
  • Item type:Article
    ID code:66462
    Dates:
    Date
    Event
    21 November 2018
    Published
    1 November 2018
    Accepted
    Subjects:Science > Physics
    Department:Faculty of Science > Physics > Optics
    Depositing user: Pure Administrator
    Date deposited:07 Jan 2019 10:04
    Last modified:11 Nov 2024 12:11
    Related URLs:
    URI:https://strathprints.strath.ac.uk/id/eprint/66462
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