期刊
PHYSICAL REVIEW B
卷 104, 期 3, 页码 -出版社
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevB.104.035304
关键词
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资金
- Australian Research Council Centre of Excellence in Future Low-Energy Electronics Technologies [CE170100039]
- Australian Research Council [FT160100244, FT200100619]
- Australian Research Council [FT160100244, FT200100619] Funding Source: Australian Research Council
The study investigates polariton quantum correlations in a coherently driven box cavity in the low driving regime, accounting for the polarization degree of freedom. Through an effective wave-function approach, analytical expressions for steady-state polarization-resolved polariton populations and second-order correlation functions are obtained, showing good agreement with numerical results. The results suggest that the dominant interaction in recent experiments on confined fiber-cavity polaritons may be between cross-polarized polaritons, characteristic of the polariton Feshbach resonance, and systems with large biexciton binding energies are promising platforms for realizing strong polariton antibunching.
We investigate polariton quantum correlations in a coherently driven box cavity in the low driving regime, with a particular focus on accounting for the polarization degree of freedom. The possibility of having different interaction strengths between co- and cross-circularly polarized polaritons as well as a realistic linear-polarization splitting allows one to model the system as two coupled nonlinear resonators with both self- and cross-Kerr-like nonlinearities, thus making our results potentially relevant for other experimental platforms. Within an effective wave-function approach, we obtain analytical expressions for the steady-state polarization-resolved polariton populations and second-order correlation functions, which agree very well with our numerical results obtained from a Lindblad master equation. Notably, we highlight that depending on the excitation polarization (circular or linear), both the unconventional (interference-mediated) and conventional (mediated by nonlinearities) antibunchings can be investigated in a single cavity. Moreover, using our results, we argue that recent experiments on confined fiber-cavity polaritons are likely to have probed a regime where the dominant interaction is between cross-polarized polaritons, which is characteristic of the polariton Feshbach resonance. We furthermore investigate the regime close to resonance using a two-channel model and we show that systems with large biexciton binding energies, such as atomically thin semiconductors, are promising platforms for realizing strong polariton antibunching.
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