We carry out a theoretical study of the collective spontaneous emission (superradiance) from an ultrathin film comprised of three-level atoms with $V$-configuration of the operating transitions. As the thickness of the system is small compared to the emission wavelength inside the film, the local-field correction to the averaged Maxwell field is relevant. We show that the interplay between the low-frequency quantum coherence within the subspace of the upper doublet states and the local-field correction may drastically affect the branching ratio of the operating transitions. This effect may be used for controlling the emission process by varying the doublet splitting and the amount of low-frequency coherence.
Dicke superradiance in degenerate quantum matter: interplay of exchange statistics and spatial confinement
Friedrich-Alexander Universität Erlangen-Nürnberg (FAU)（埃尔朗根-纽伦堡弗里德里希·亚历山大大学）；Max Planck Institute for the Science of Light（马克斯·普朗克光科学研究所）；TU Darmstadt（达姆施塔特工业大学）
ETH Zürich（苏黎世联邦理工学院）；Quantum Science Center of Guangdong-Hong Kong-Macao Greater Bay Area（粤港澳大湾区量子科学中心）；JILA, University of Colorado and National Institute of Standards and Technology（科罗拉多大学与国家标准技术局联合物理实验室）
Superradiance enhances and suppresses fermionic pairing based on universal critical scaling in two order parameters systems
State Key Laboratory for Mesoscopic Physics, School of Physics, Frontiers Science Center for Nano-optoelectronics, Peking University（北京大学物理学院介观物理国家重点实验室前沿纳米光电子学中心）；Peking University（北京大学）；Beijing Academy of Quantum Information Sciences（北京量子信息科学研究院）
Vacuum-induced interference in light scattering by multilevel atomic chains
University of Innsbruck（因斯布鲁克大学）；Saarland University（萨尔兰大学）；Center for Quantum Technologies (QuTe), Saarland University（萨尔兰大学量子技术中心）；Università degli Studi di Milano（米兰大学）
Defect engineering of ultrathin gallium nitride via electric fields for advanced electronic, magnetic, and gas sensing applications
Nanyang Technological University（南洋理工大学）；Infineon Technologies Asia Pacific Pte. Ltd.（英飞凌亚太私人有限公司）；China-Singapore International Joint Research Institute（中新国际联合研究院）
