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Nonclassical Effects Based on Husimi Distributions in Two Open Cavities Linked by an Optical Waveguide.
Abdel-Baset A Mohamed1,2, Hichem Eleuch3,4
1Department of Mathematics, College of Science and Humanities in Al-Aflaj, Prince Sattam bin Abdulaziz University, Al-Aflaj 710-11912, Saudi Arabia.
Entropy (Basel, Switzerland)
|December 8, 2020
Summary
This study explores nonclassical effects in coupled quantum wells within optical cavities. Key parameters like couplings and medium density influence quantum coherence and information, which can be preserved against dissipation.
Area of Science:
- Quantum optics
- Condensed matter physics
- Quantum information science
Background:
- Investigating nonclassical effects is crucial for understanding quantum systems.
- Coupled quantum well systems in optical cavities offer a platform for exploring quantum phenomena.
Purpose of the Study:
- To investigate nonclassical effects in a system of two spatially separated, fiber-linked open cavities, each containing a quantum well.
- To explore the impact of physical parameters on the generation and robustness of mixedness and Husimi distribution (HD) information in phase space.
Main Methods:
- Utilizing Husimi distributions (HDs) and Wehrl entropy to analyze quantum properties.
- Examining the influence of cavity-exciton coupling, fiber-cavity coupling, and optical medium density.
Main Results:
- Generated quantum coherence and HD information are critically dependent on cavity-exciton and fiber-cavity couplings, and optical medium density.
- Dissipation leads to loss of HD information and purity, but this can be mitigated by increasing optical susceptibility and couplings.
Conclusions:
- Physical parameters significantly control the regularity, amplitudes, and frequencies of generated mixedness.
- The study demonstrates a method to enhance the robustness of quantum information in coupled quantum well systems against decoherence.
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