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Generation and Coherent Control of Pulsed Quantum Frequency Combs
Published on: June 8, 2018
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Frequency combs with weakly lasing exciton-polariton condensates
K Rayanov1, B L Altshuler1,2, Y G Rubo3
1New Zealand Institute for Advanced Study, Centre for Theoretical Chemistry and Physics, Massey University, 0745 Auckland, New Zealand.
Physical Review Letters
|May 30, 2015
Summary
We predict complex dynamics and frequency comb emission from coupled exciton-polariton condensates. This study reveals self-induced oscillations and asymmetric spectra due to broken time-reversal symmetry.
Area of Science:
- Quantum optics
- Condensed matter physics
- Nonlinear dynamics
Background:
- Exciton-polariton condensates exhibit unique quantum phenomena.
- Coupling between condensates can lead to complex behaviors.
Purpose of the Study:
- To predict spontaneous emission from coupled exciton-polariton condensates.
- To investigate dynamics beyond Hopf bifurcations.
- To analyze frequency comb generation and spectral properties.
Main Methods:
- Theoretical prediction of emission.
- Analysis of coherent (Josephson) and dissipative coupling.
- Investigation of polariton-polariton interactions.
- Inclusion of shot noise effects.
Main Results:
- Complex dynamics beyond Hopf bifurcations observed.
- Self-induced oscillations and equidistant frequency comb emission.
- Asymmetric emission spectra due to broken time-reversal symmetry.
- Inhomogeneous line broadening from shot noise.
Conclusions:
- Strong polariton interactions drive novel dynamics in coupled condensates.
- Spontaneously broken time-reversal symmetry leads to diverse spectral features.
- Shot noise significantly impacts lasing dynamics and spectral broadening.
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