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Shortcuts to Equilibrium with a Levitated Particle in the Underdamped Regime
Damien Raynal1, Timothée de Guillebon1, David Guéry-Odelin2
1Université Paris-Saclay, ENS Paris-Saclay, CNRS, CentraleSupélec, LuMIn, 91405 Orsay Cedex, France.
Physical Review Letters
|September 8, 2023
Summary
We sped up equilibrium recovery for underdamped systems using optically levitated particles, achieving an order of magnitude faster convergence. This research optimizes nanomachines for sensing and nanoheat engines.
Area of Science:
- Physics
- Nanotechnology
- Thermodynamics
Background:
- Equilibrium recovery is crucial for understanding system dynamics.
- The underdamped regime presents unique challenges for controlling particle behavior.
- Optically levitated particles offer a controllable platform for studying fundamental physics.
Purpose of the Study:
- To accelerate equilibrium recovery in the general underdamped regime.
- To investigate the efficiency of different protocols for speeding up convergence.
- To explore applications in nanomachines, sensing, and nanoheat engines.
Main Methods:
- Utilizing an optically levitated particle system.
- Implementing novel protocols to influence particle dynamics.
- Analyzing convergence rates and comparing them to natural relaxation times.
Main Results:
- Achieved an order of magnitude acceleration in equilibrium recovery.
- Demonstrated the effectiveness of the proposed protocols.
- Evaluated the efficiency of protocols, particularly in multidimensional systems.
Conclusions:
- The developed methods significantly speed up equilibrium recovery in underdamped systems.
- These findings enable optimization of nanomachines for enhanced sensing capabilities.
- The research contributes to the development of efficient nanoheat engines.
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