Published June 29, 2020
| Version v1
Publication
Avoided Crossing and sub-Fourier-sensitivity in Driven Quantum Systems
Contributors
Description
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.
Abstract
Ministerio de Economía y Competitividad of Spain, Grant No. FIS2016-80244-PAdditional details
Identifiers
- URL
- https://idus.us.es/handle//11441/98393
- URN
- urn:oai:idus.us.es:11441/98393