Related Experiment Video
Updated: Jan 3, 2026

Experimental Methods for Trapping Ions Using Microfabricated Surface Ion Traps
Published on: August 17, 2017
Periodic thermodynamics of the Rabi model with circular polarization for arbitrary spin quantum numbers
Heinz-Jürgen Schmidt1, Jürgen Schnack2, Martin Holthaus3
1Universität Osnabrück, Fachbereich Physik, D-49069 Osnabrück, Germany.
We analytically determined the steady-state spin distribution under oscillating magnetic fields. This reveals a quasitemperature, enabling paramagnets to exhibit diamagnetic behavior under strong driving.
Area of Science:
- Quantum thermodynamics
- Condensed matter physics
- Statistical mechanics
Background:
- Understanding non-equilibrium systems is crucial for thermodynamics.
- Spin dynamics in magnetic fields are fundamental to magnetism.
Purpose of the Study:
- To analytically determine the quasistationary distribution of Floquet-state occupation probabilities for a spin-s system.
- To investigate the magnetic response of driven paramagnetic materials.
Main Methods:
- Analytical determination of Floquet-state occupation probabilities.
- Investigation of spin dynamics under static and oscillating magnetic fields coupled to a heat bath.
Main Results:
- The distribution is Boltzmannian with a quasitemperature, independent of spin quantum number.
- A formal analogy exists between quasithermal and thermal paramagnetism.
- Paramagnetic materials can exhibit diamagnetic behavior under strong driving.
Conclusions:
- The study introduces a novel quasithermal state in driven systems.
- Experimental measurements can validate periodic thermodynamics.
- The findings offer new paradigms for non-equilibrium statistical mechanics.
More Related Videos
07:56A Photonic System for Generating Unconditional Polarization-Entangled Photons Based on Multiple Quantum Interference
Published on: September 5, 2019
09:00Experimental Methods for Spin- and Angle-Resolved Photoemission Spectroscopy Combined with Polarization-Variable Laser
Published on: June 28, 2018
Related Concept Videos
Atomic Nuclei: Nuclear Spin State Population Distribution
Atomic Nuclei: Nuclear Spin State Overview
The Pauli Exclusion Principle
Spin–Spin Coupling Constant: Overview
Qualitatively, any spin plus-half nucleus polarizes the spins of its electrons to the minus-half state. Consequently, the paired electron in the hydrogen–carbon bond must...
The Quantum-Mechanical Model of an Atom
Atomic Nuclei: Nuclear Relaxation Processes