Environment-controlled Floquet-state paramagnetism
arXiv:2005.11024 · doi:10.1103/PhysRevResearch.2.023293
Abstract
We study the response of ideal spin systems which are interacting with both a strong oscillating magnetic field, and a thermal environment, to a weak probing magnetic field. We demonstrate that even the sign of the resulting mean magnetization depends on the amplitude of the driving field, and that its absolute value can be significantly larger than the equilibrium magnetization in the absence of time-periodic forcing. Since the underlying Floquet-state occupation probabilities are determined by the precise form of the system-bath coupling, future measurements of such effects have the potential to establish a particularly innovative line of research, providing information on nonequilibrium thermodynamics, and giving access to quantities which usually remain hidden when probing equilibrium systems.
arXiv comment7 pages, 9 figures
References in corpus (15)
- Observation of a Discrete Time Crystal
- Observation of discrete time-crystalline order in a disordered dipolar many-body system
- A.C. susceptibility as a probe of low-frequency magnetic dynamics
- Statistical mechanics of Floquet systems: the pervasive problem of near degeneracies
- Condition for emergence of the Floquet-Gibbs state in periodically driven open systems
- Asymptotic Floquet states of open quantum systems: The role of interaction
- Driven open quantum systems and Floquet stroboscopic dynamics
- Stochastic thermodynamics of rapidly driven systems
- Statistical mechanics of Floquet systems with regular and chaotic states
- Energy flow in periodic thermodynamics
- Environment-governed dynamics in driven quantum systems
- Periodic thermodynamics of the Rabi model with circular polarization for arbitrary spin quantum numbers
- Periodic thermodynamics of the parametrically driven harmonic oscillator
- Floquet-state cooling
- Periodic thermodynamics of a two spin Rabi model