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Coherent Atom-Phonon Interaction through Mode Field Coupling in Hybrid Optomechanical Systems
Michele Cotrufo1, Andrea Fiore1, Ewold Verhagen2
1Department of Applied Physics, Eindhoven University of Technology, 5600 MB Eindhoven, The Netherlands.
Physical Review Letters
|April 15, 2017
Summary
We introduce mode field coupling, a new optomechanical interaction. This method allows precise control over quantum systems, enabling excitation swapping and cooling in macroscopic mechanical oscillators.
Area of Science:
- Quantum Optics
- Optomechanics
- Condensed Matter Physics
Background:
- Optomechanical systems couple light and motion.
- Controlling quantum interactions is crucial for quantum technologies.
- Existing methods face limitations in specific regimes.
Purpose of the Study:
- To introduce a novel optomechanical coupling mechanism.
- To demonstrate its potential for quantum state manipulation.
- To enable new functionalities in quantum optomechanics.
Main Methods:
- Proposing a tripartite interaction: quantum emitter, optical mode, mechanical oscillator.
- Utilizing "mode field coupling" where mechanical displacement alters optical mode fields.
- Modulating emitter-photon coupling rates via mechanical motion.
Main Results:
- Achieving mode field coupling as the sole interaction pathway in designed systems.
- Demonstrating excitation swapping between emitter and phonon (mechanical vibration).
- Enabling nonclassical states of motion and ground-state cooling in the bad-cavity regime.
Conclusions:
- Mode field coupling offers a powerful new tool for quantum control.
- Enhanced emitter-phonon coupling via optical drive allows active manipulation.
- This mechanism opens avenues for advanced quantum devices and fundamental studies.