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Coherent light-matter interaction at the single photon and electronic qubit level promises the remarkable potential for nonclassical information processing. Against the efforts of improving the figure of merit of the cavities, here we…

Quantum Physics · Physics 2015-06-19 Yong-Chun Liu , Xingsheng Luan , Hao-Kun Li , Qihuang Gong , Chee Wei Wong , Yun-Feng Xiao

We demonstrate the effects of cavity quantum electrodynamics for a quantum dot coupled to a photonic molecule, consisting of a pair of coupled photonic crystal cavities. We show anti-crossing between the quantum dot and the two super-modes…

Mesoscale and Nanoscale Physics · Physics 2012-07-30 Arka Majumdar , Armand Rundquist , Michal Bajcsy , Jelena Vučković

Resonant excitation of atoms and ions in macroscopic cavities has lead to exceptional control over quanta of light. Translating these advantages into the solid state with emitters in microcavities promises revolutionary quantum technologies…

We report on the radiative interaction of two single quantum dots (QDs) each in a separate InP/GaInP-based microdisk cavity via resonant whispering gallery modes. The investigations are based on ab initio coupled disk modes. We apply…

Quantum Physics · Physics 2018-01-17 Simon Seyfferle , Fabian Hargart , Michael Jetter , Evelyn Hu , Peter Michler

We present experimental investigations on the non-resonant dot-cavity coupling of a single quantum dot inside a micro-pillar where the dot has been resonantly excited in the s-shell, thereby avoiding the generation of additional charges in…

Quantum Physics · Physics 2009-12-07 S. Ates , S. M. Ulrich , A. Ulhaq , S. Reitzenstein , A. Loeffler , S. Hoeffling , A. Forchel , P. Michler

Cavity quantum electrodynamics has attracted substantial interest, both due to its potential role in the field of quantum information processing and as a testbed for basic experiments in quantum mechanics. Here, we show how cavity quantum…

Mesoscale and Nanoscale Physics · Physics 2011-11-22 Martin Winger , Antonio Badolato , Kevin Hennessy , Evelyn Hu , Atac Imamoglu

Strong coupling between an atom and an electromagnetic resonator is an important condition in cavity quantum electrodynamics (QED). While strong coupling in various physical systems has been achieved so far, it remained elusive for single…

Quantum Physics · Physics 2020-01-22 Hiroki Takahashi , Ezra Kassa , Costas Christoforou , Matthias Keller

We observe antibunching in the photons emitted from a strongly-coupled single quantum dot and pillar microcavity in resonance. When the quantum dot was spectrally detuned from the cavity mode, the cavity emission remained antibunched, and…

Two-photon Rabi splitting in a cavity-dot system provides a basis for multi-qubit coherent control in quantum photonic network. Here we report on two-photon Rabi splitting in a strongly coupled cavity-dot system. The quantum dot was grown…

We present a basic building block of a quantum network consisting of a quantum dot coupled to a source cavity, which in turn is coupled to a target cavity via a waveguide. The single photon emission from the high-Q/V source cavity is…

Quantum Physics · Physics 2009-11-13 Dirk Englund , Andrei Faraon , Bingyang Zhang , Yoshihisa Yamamoto , Jelena Vuckovic

Plasmonic cavities can confine electromagnetic radiation to deep sub-wavelength regimes. This facilitates strong coupling phenomena to be observed at the limit of individual quantum emitters. Here we report an extensive set of measurements…

Mesoscale and Nanoscale Physics · Physics 2021-02-03 Satyendra Nath Gupta , Ora Bitton , Tomas Neuman , Ruben Esteban , Lev Chuntonov , Javier Aizpurua , Gilad Haran

Single-photon sources with high brightness and long coherence time are promising qubit candidates for quantum technology. To this end, interfacing emitters with high-finesse cavities is required, especially in the strong coupling regime,…

The mode profile of a coupled optical cavity often exhibits a resonant doublet, which arises from the strong coupling between its sub-cavities. Traditional readout methods rely on setting fields of different frequencies to be resonant in…

Optics · Physics 2023-08-08 Riccardo Maggiore , Artemiy Dmitriev , Andreas Freise , Mischa Sallé

We report the observation of the vacuum Rabi splitting of a single quantum emitter by measuring its direct spontaneous emission into free space. We used a semiconductor quantum dot inside a photonic crystal nanocavity, in conjunction with…

Quantum Physics · Physics 2015-06-24 Yasutomo Ota , Ryuichi Ohta , Naoto Kumagai , Satoshi Iwamoto , Yasuhiko Arakawa

The strong-coupling regime of cavity-quantum-electrodynamics (cQED) represents light-matter interaction at the fully quantum level. Adding a single photon shifts the resonance frequencies, a profound nonlinearity. cQED is a test-bed of…

Precise positioning of single site-controlled inverted pyramidal InGaAs QD at the antinode of a GaAs photonic crystal cavity with nanometer-scale accuracy holds unique advantages compared to self-assembled QDs and offers great promise for…

Mesoscale and Nanoscale Physics · Physics 2025-02-13 Jiahui Huang , Wei Liu , Xiang Cheng , Alessio Miranda , Benjamin Dwir , Alok Rudra , Eli Kapon , Chee Wei Wong

We show that resonance fluorescence, i.e. the resonant emission of a coherently driven two-level system, can be realized with a semiconductor quantum dot. The dot is embedded in a planar optical micro-cavity and excited in a wave-guide mode…

Semiconductor quantum dots in photonic cavities are strongly coupled light-matter systems with prospective applications in optoelectronic devices and quantum information processing. Here we present a theoretical study of the coupled…

Mesoscale and Nanoscale Physics · Physics 2020-06-16 K. Jürgens , F. Lengers , T. Kuhn , D. E. Reiter

We present a study of the strong coupling between radiation and matter, considering a system of two quantum dots, which are in mutual interaction and interacting with a single mode of light confined in a semiconductor nanocavity. We take…

Strongly Correlated Electrons · Physics 2015-05-27 Paulo C. Cárdenas , Nicolás Quesada , Herbert Vinck-Posada , Boris A. Rodríguez

Cavity quantum electrodynamics systems using atoms in resonant optical cavities are central elements of many applications such as quantum networks and quantum-enhanced sensing. We present a novel experimental setup that achieves strong…

Atomic Physics · Physics 2025-03-25 T. Olney , V. Naniyil , V. Boyer , J. Goldwin , A. B. Deb