Chiral superfluorescence from perovskite superlattices at room temperature
ORAL · Invited
Abstract
Collective light–matter interactions can give rise to striking many-body radiation phenomena, such as superradiance and superfluorescence, in which ensembles of quantum emitters radiate coherently with strongly enhanced intensity. Long studied in atomic systems, these effects are now being explored in solid-state platforms as a route to new forms of controllable quantum light.
In this talk, I will discuss recent progress in realizing and controlling collective emission in chiral quantum materials, focusing on the emergence of circularly polarized superfluorescent light from chiral perovskite superlattices at room temperature. The observed behavior illustrates how material chirality, cooperative many-body dynamics, and optical coherence can combine to produce radiation properties that are absent at the level of individual emitters.
I will also outline a theoretical framework for the dynamical buildup of coherence and polarization in interacting emitter ensembles, and place these results in the broader context of cooperative emission, symmetry, and topology. I will conclude by highlighting connections to other superradiant and subradiant phenomena, as well as prospects for chirality-controlled collective light emission in quantum-optical and photonic applications.
In this talk, I will discuss recent progress in realizing and controlling collective emission in chiral quantum materials, focusing on the emergence of circularly polarized superfluorescent light from chiral perovskite superlattices at room temperature. The observed behavior illustrates how material chirality, cooperative many-body dynamics, and optical coherence can combine to produce radiation properties that are absent at the level of individual emitters.
I will also outline a theoretical framework for the dynamical buildup of coherence and polarization in interacting emitter ensembles, and place these results in the broader context of cooperative emission, symmetry, and topology. I will conclude by highlighting connections to other superradiant and subradiant phenomena, as well as prospects for chirality-controlled collective light emission in quantum-optical and photonic applications.
*We acknowledge funding from NSF, AFOSR, and the Beckman Foundation.
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Publication: Wei Q, Peter JS, Ren H, Wang W, Zhou L, Liu Q, Ostermann S, Yin J, Cai S, Yelin SF, Li M. Chiral superfluorescence from perovskite superlattices. arXiv preprint arXiv:2506.22786.
Presenters
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Susanne F Yelin
- Harvard University