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.
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Item type: Article ID code: 66462 Dates: DateEvent21 November 2018Published1 November 2018AcceptedSubjects: Science > Physics Department: Faculty of Science > Physics > Optics Depositing user: Pure Administrator Date deposited: 07 Jan 2019 10:04 Last modified: 19 Mar 2024 02:36 Related URLs: URI: https://strathprints.strath.ac.uk/id/eprint/66462