Chiral superfluorescence from perovskite superlattices

• URL: http://arxiv.org/abs/2506.22786v1
• Date: Sat, 28 Jun 2025 07:00:11 GMT
• Title: Chiral superfluorescence from perovskite superlattices
• Authors: Qi Wei, Jonah S. Peter, Hui Ren, Weizhen Wang, Luwei Zhou, Qi Liu, Stefan Ostermann, Jun Yin, Songhua Cai, Susanne F. Yelin, Mingjie Li,
• Abstract summary: We report room-temperature chiral CP-SF originating from edge states in large-area perovskite superlattices.<n>Chirality-induced photon transport drives the transition from initially incoherent, weakly polarized spontaneous emission to highly polarized CP-SF.<n>Our findings emphasize the crucial role of chirality in establishing large-scale quantum coherence within chiral superlattices.
• Score: 7.5999278177179015
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: Superfluorescence (SF), a many-body quantum optics phenomenon, emerges from the collective interactions among self-organized and cooperatively coupled emitters, producing intense burst of ultrashort coherent radiation1-4. While SF has been observed in several solid-state materials5-9, the spontaneous generation of circularly polarized (CP) chiral SF has not been realized. Here, we report room-temperature chiral CP-SF originating from edge states in large-area (>100 um * 100 um), transferable vertically aligned chiral quasi-2D perovskite superlattices. Theoretical quantum optics calculations reveal that chirality-induced photon transport drives the transition from initially incoherent, weakly polarized spontaneous emission to highly polarized CP-SF, amplifying the circular polarization degree up to around 14%. Notably, the polarization helicity is found to flip between forward and backward propagation directions, a characteristic signature of a macroscopic CP dipole transition. Moreover, both the intensity and polarization degree of CP-SF can be tuned under weak magnetic fields, enabling precise control over solid-state quantum light emission at room temperature. Our findings emphasize the crucial role of chirality in establishing large-scale quantum coherence within chiral superlattices, thereby unveiling promising avenues for chirality-controlled quantum spin-optical applications 10,11.

Related papers

• Coherent polarization self-rotation [0.0]
  coherent polarization self-rotation (CPSR) is a two-photon light-matter interaction in dense alkali-metal vapors.<n>CPSR enables narrowband optical spectroscopy of magnetic transitions and coherent coupling between light and atomic spins.
  arXiv  Detail & Related papers  (2025-06-02T17:18:48Z)
• Cavity quantum electrodynamics with single perovskite quantum dots [0.0]
  We show the deterministic and reversible coupling of individual CsPbBr$_3$ perovskite quantum dots to a tunable, high-quality factor, low mode volume fiber-based Fabry-P'erot microcavity.<n>By tuning the cavity mode in resonance with the quantum dot emission, we observe up to a twofold increase in single photon emission rates.
  arXiv  Detail & Related papers  (2025-03-26T10:40:15Z)
• Limits for coherent optical control of quantum emitters in layered materials [49.596352607801784]
  coherent control of a two-level system is among the most essential challenges in modern quantum optics. We use a mechanically isolated quantum emitter in hexagonal boron nitride to explore the individual mechanisms which affect the coherence of an optical transition under resonant drive. New insights on the underlying physical decoherence mechanisms reveals a limit in temperature until which coherent driving of the system is possible.
  arXiv  Detail & Related papers  (2023-12-18T10:37:06Z)
• Directional spontaneous emission in photonic crystal slabs [49.1574468325115]
  Spontaneous emission is a fundamental out-of-equilibrium process in which an excited quantum emitter relaxes to the ground state due to quantum fluctuations. One way to modify these photon-mediated interactions is to alter the dipole radiation patterns of the emitter, e.g., by placing photonic crystals near them. Our study delves into the interaction between these directional emission patterns and the aforementioned variables, revealing the untapped potential to fine-tune collective quantum optical phenomena.
  arXiv  Detail & Related papers  (2023-12-04T15:35:41Z)
• Crossover from exciton polarons to trions in doped two-dimensional semiconductors at finite temperature [0.0]
  We study systematically the role of temperature in the optical response of doped two-dimensional semiconductors. By making use of a finite-temperature Fermi-polaron theory, we reveal a crossover from a quantum-degenerate regime with well-defined polaron quasiparticles to an incoherent regime at high temperature or low doping.
  arXiv  Detail & Related papers  (2022-12-12T00:09:12Z)
• Single quantum emitters with spin ground states based on Cl bound excitons in ZnSe [55.41644538483948]
  We show a new type of single photon emitter with potential electron spin qubit based on Cl impurities inSe. Results suggest single Cl impurities are suitable as single photon source with potential photonic interface.
  arXiv  Detail & Related papers  (2022-03-11T04:29:21Z)
• Efficient anisotropic polariton lasing using molecular conformation and orientation in organic microcavities [0.0]
  We report a two-fold reduction in the threshold of a polariton laser based on a high-Q microcavity filled with an active layer of poly(9,9-dioctylfluorene) (PFO) To our knowledge, this threshold is lower than demonstrated with state-of-the art optically pumped organic vertical cavity surface-emitting photon and polariton lasers.
  arXiv  Detail & Related papers  (2022-02-21T18:29:25Z)
• Inverted fine structure of a 6H-SiC qubit enabling robust spin-photon interface [0.0]
  A type of silicon vacancy qubits in 6H-SiC possesses an unusual inverted fine structure. This results in the directional emission of light along the hexagonal crystallographic axis, making photon extraction more efficient. Our experimental and theoretical approaches provide a deep insight into the optical and spin properties of atomic-scale qubits in SiC.
  arXiv  Detail & Related papers  (2021-07-14T20:58:22Z)
• Room temperature single-photon emitters in silicon nitride [97.75917079876487]
  We report on the first-time observation of room-temperature single-photon emitters in silicon nitride (SiN) films grown on silicon dioxide substrates. As SiN has recently emerged as one of the most promising materials for integrated quantum photonics, the proposed platform is suitable for scalable fabrication of quantum on-chip devices.
  arXiv  Detail & Related papers  (2021-04-16T14:20:11Z)
• Temperature insensitive type II quasi-phasematched spontaneous parametric downconversion [62.997667081978825]
  The temperature dependence of the refractive indices of potassium titanyl phosphate (KTP) are shown to enable quasi-phasematched type II spontaneous parametric downconversion. We demonstrate the effect experimentally, observing temperature-insensitive degenerate emission at 1326nm, within the telecommunications O band. This result has practical applications in the development of entangled photon sources for resource-constrained environments.
  arXiv  Detail & Related papers  (2020-12-09T16:14:15Z)
• Photon Condensation and Enhanced Magnetism in Cavity QED [68.8204255655161]
  A system of magnetic molecules coupled to microwave cavities undergoes the equilibrium superradiant phase transition. The effect of the coupling is first illustrated by the vacuum-induced ferromagnetic order in a quantum Ising model. A transmission experiment is shown to resolve the transition, measuring the quantum electrodynamical control of magnetism.
  arXiv  Detail & Related papers  (2020-11-07T11:18:24Z)

This list is automatically generated from the titles and abstracts of the papers in this site.

This site does not guarantee the quality of this site (including all information) and is not responsible for any consequences.