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Dissipative bosonic squeezing via frequency modulation and its application in optomechanics
Optics Express
|October 29, 2020
Summary
This study introduces frequency modulation to create arbitrary bosonic squeezing for precision metrology. The method achieves strong mechanical squeezing in optomechanical systems, even without initial ground state, advancing nonclassical state research.
Area of Science:
- Quantum Optics
- Precision Metrology
- Condensed Matter Physics
Background:
- Dissipative squeezing is crucial for precision metrology.
- Generating arbitrary bosonic squeezing requires advanced techniques.
Purpose of the Study:
- To propose a practical method for achieving arbitrary bosonic squeezing.
- To extend this method for strong mechanical squeezing in optomechanical systems.
Main Methods:
- Introducing frequency modulation into a coupled harmonic resonator model.
- Analyzing frequency modulation effects analytically and numerically.
- Developing a generalized definition for relative squeezing degree.
Main Results:
- Arbitrary bosonic squeezing can be achieved via frequency modulation.
- Strong mechanical squeezing (>3 dB) generated in a graphene-based optomechanical system.
- Effective squeezing achieved even when the mechanical oscillator is not in its ground state.
Conclusions:
- The proposed frequency modulation method offers a practical route to arbitrary bosonic squeezing.
- This technique advances the generation of nonclassical states without complex driving methods.
- The method is applicable to strong mechanical squeezing in realistic systems.
