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We study dynamics of the interaction between two weak light beams mediated by a strongly coupled quantum dot-photonic crystal cavity system. First, we perform all optical switching of a weak continuous-wave signal with a pulsed control…

Quantum Physics · Physics 2012-03-06 Dirk Englund , Arka Majumdar , Michal Bajcsy , Andrei Faraon , Pierre Petroff , Jelena vuckovic

We experimentally realize a meter-scale strong coupling effect between magnons and photons at room temperature, with a coherent coupling of 20 m and a dissipative coupling of 7.6 m. To this end, we integrate a saturable gain into a…

Quantum Physics · Physics 2023-08-11 Jinwei Rao , C. Y. Wang , Bimu Yao , Z. J. Chen , K. X. Zhao , Wei Lu

Integrated photonics has enabled much progress towards quantum technologies. Many applications, including quantum communication, sensing, and distributed and cloud quantum computing, will require coherent photonic interconnection between…

Multistability -- the emergence of multiple stable states under identical conditions -- is a hallmark of nonlinear complexity and an enabling mechanism for multilevel optical memory and photonic computing. Its realization in a compact…

Optics · Physics 2025-11-18 Zhen Liu , Xuefan Yin , Andrey Bogdanov , Yujia Nie , Yi Zuo , Hongbin Li , Feifan Wang , Chao Peng

Realizing a strong interaction between individual optical photons is an important objective of research in quantum science and technology. Since photons do not interact directly, this goal requires, e.g., an optical medium in which the…

Quantum Physics · Physics 2015-06-19 Jürgen Volz , Michael Scheucher , Christian Junge , Arno Rauschenbeutel

Reaching strong light-matter coupling in solid-state systems has been long pursued for the implementation of scalable quantum devices. Here, we put forward the concept of a platform capable of achieving strong coupling between magnetic…

Mesoscale and Nanoscale Physics · Physics 2022-05-18 V. A. S. V. Bittencourt , I. Liberal , S. Viola Kusminskiy

Developing quantum networks necessitates coherently connecting distant systems via remote strong coupling. Here, we demonstrate long-distance coherence in cavity magnonics operating in the linear regime. By locally setting the cavity near…

Quantum Physics · Physics 2024-06-14 Ying Yang , Jiguang Yao , Yang Xiao , Pak-Tik Fong , Hoi-Kwan Lau , C. -M. Hu

We introduce a hybrid tripartite quantum system for strong coupling between a semiconductor spin, a mechanical phonon, and a microwave photon. Consisting of a piezoelectric resonator with an integrated diamond strain concentrator, this…

Optical nonreciprocity is important in photonic information processing to route the optical signal or prevent the reverse flow of noise. By adopting the strong nonlinearity associated with a few atoms in a strongly coupled cavity QED system…

Photonic resonances are a powerful tool for controlling light-matter interactions. However, unlocking many of the most scientifically intriguing and technologically promising phenomena requires entering the strong coupling regime, where…

We propose an unconventional scheme of photoluminescence in a semiconductor thin film, where the nonlocal correlation between an excitonic wave and a light wave prominently enhances the exciton-light coupling beyond the long-wavelength…

Mesoscale and Nanoscale Physics · Physics 2016-04-15 Takuya Matsuda , Nobuhiko Yokoshi , Hajime Ishihara

Polariton emission from optical cavities integrated with various luminophores has been extensively studied recently due to the wide variety of possible applications in photonics, particularly promising in terms of fabrication of…

Mesoscale and Nanoscale Physics · Physics 2021-07-28 Dmitriy Dovzhenko , Maksim Lednev , Konstantin Mochalov , Ivan Vaskan , Pavel Samokhvalov , Yury Rakovich , Igor Nabiev

We propose a scheme to generate entanglement between a single-photon qubit in the polarization basis and a coherent state of light. The required resources are a superposition of coherent states, a polarization entangled photon pair, beam…

Quantum Physics · Physics 2015-02-04 Hyukjoon Kwon , Hyunseok Jeong

A two-level system that is coupled to a high-finesse cavity in the Purcell regime exhibits a giant optical non-linearity due to the saturation of the two-level system at very low intensities, of the order of one photon per lifetime. We…

We propose the use of weakly nonlinear passive materials for prospective applications in integrated quantum photonics. It is shown that strong enhancement of native optical nonlinearities by electromagnetic field confinement in photonic…

Mesoscale and Nanoscale Physics · Physics 2015-06-12 S. Ferretti , V. Savona , D. Gerace

Nonlinear effects in microresonators are efficient building blocks for all-optical computing and telecom systems. With the latest advances in microfabrication, coupled microresonators are used in a rapidly growing number of applications. In…

We study the photon statistics of symmetric and antisymmetric modes in a photonic molecule consisting of two linearly coupled nonlinear cavity modes. Our calculations show that strong photon antibunching of both symmetric and antisymmetric…

Quantum Physics · Physics 2014-09-10 Xun-Wei Xu , Yong Li

Coupled mode theory predicts that the long-distance coupling between two distant harmonic oscillators is in the weak coupling regime. However, a recent experimental measurement observed strong coupling of magnon and critically-driven photon…

Quantum Physics · Physics 2024-09-04 Yang Xiao

Strong coupling exhibits unique ability to preserve quantum sates between light and matter, which is essential for the development of quantum information technology. To explore the physical mechanism behind this phenomenon, we employ the…

Decay of a four-level diamond scheme via a cascade is a potential source of entangled photon pairs. A solid-state implementation is the biexciton cascade in a semiconductor quantum dot. While high entanglement fidelities have been…