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Updated: Jul 2, 2026
11:45
Experimental Methods for Trapping Ions Using Microfabricated Surface Ion Traps
Published on: August 17, 2017
Employing trapped cold ions to verify the quantum Jarzynski equality
Gerhard Huber1, Ferdinand Schmidt-Kaler, Sebastian Deffner
1Institut für Quanten-Informationsverarbeitung, Universität Ulm, Albert-Einstein-Allee 11, D-89069 Ulm, Germany.
Physical Review Letters
|September 4, 2008
Summary
We present a method using trapped ions to study quantum work distributions and free energy differences. This research explores the Jarzynski equality in both open and closed quantum systems.
Area of Science:
- Quantum mechanics
- Thermodynamics
- Ion trapping
Background:
- Investigating nonequilibrium processes in quantum systems is crucial for understanding fundamental physics.
- The Jarzynski equality provides a bridge between microscopic dynamics and macroscopic thermodynamics.
Purpose of the Study:
- To propose and detail a scheme for experimentally probing the nonequilibrium work distribution of a quantum particle.
- To demonstrate the application of trapped ions for studying quantum thermodynamics.
Main Methods:
- Utilizing a single ion in a segmented linear Paul trap to control quantum states.
- Preparing, manipulating, and reading out the motional quantum state of the ion.
- Engineering a laser-field reservoir to immerse the ion.
Main Results:
- The proposed scheme allows for the full determination of free energy differences in harmonic and anharmonic potentials.
- Demonstration of an ion immersed in an engineered laser-field reservoir.
Conclusions:
- Trapped ions offer a versatile platform for investigating quantum thermodynamics, including the Jarzynski equality.
- The developed methods are applicable to both open and closed quantum systems.
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