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The collapse and revival of quantum states appear in diverse areas of physics. In quantum optics the occurrence of such a phenomena in the evolution of an atomic state, interacting with a light field initially in a coherent state, was…

Optics · Physics 2015-12-31 Chang Jae Lee

We propose to measure the superradiance effect by observing the current through a semiconductor double-dot ststem. An electron and a hole are injected separately into one of the quantum dots to form an exciton and then recombine…

Mesoscale and Nanoscale Physics · Physics 2007-05-23 Y. N. Chen , D. S. Chuu , T. Brandes

We demonstrate off-resonant coupling between a single quantum dot and a nanobeam photonic crystal cavity, under resonant excitation of the quantum dot or the cavity. These results are consistent with previous descriptions of off-resonant…

Mesoscale and Nanoscale Physics · Physics 2011-12-22 Armand Rundquist , Arka Majumdar , Jelena Vuckovic

We discuss two-photon correlations from the side peaks that are formed when a two-level system emitter is driven coherently, with a detuning between the driving source and the emitter (quasi-resonance fluorescence). We do so in the context…

Quantum Physics · Physics 2023-05-03 Eduardo Zubizarreta Casalengua , Elena del Valle , Fabrice P. Laussy

Lasers and LEDs display a statistical distribution in the number of photons emitted in a given time interval. New applications exploiting the quantum properties of light require sources for which either individual photons, or pairs, are…

Quantum Physics · Physics 2015-05-13 Andrew J Shields

Semiconductor quantum dots host a rich manifold of excitonic complexes, including neutral excitons that emit anti-bunched single photons and charged exciton complexes capable of producing super-bunched photons via cascade emission.…

We present rigorous and intuitive master equation models to study on-demand single photon sources from pulse-excited quantum dots coupled to cavities. We consider three methods of source excitation: resonant pi-pulse, off-resonant…

Quantum Physics · Physics 2019-11-28 Chris Gustin , Stephen Hughes

We study the dynamical Casimir effect in a double superconducting cavity in a circuit quantum electrodynamics architecture. Parameters in the quantum circuit are chosen in such a way the superconducting cavity can mimic a double cavity,…

Cavities embedded in photonic crystal waveguides offer a promising route towards large scale integration of coupled resonators for quantum electrodynamics applications. In this letter, we demonstrate a strongly coupled system formed by a…

Quantum Physics · Physics 2015-05-18 F. S. F. Brossard , X. L. Xu , D. A. Williams , M. Hadjipanayi , M. Hopkinson , X. Wang , R. A. Taylor

We predict a bistability in the photon emission from a solid-state single-atom laser comprising a microwave cavity coupled to a voltage-biased double quantum dot. To demonstrate that the single-atom laser is bistable, we evaluate the photon…

Mesoscale and Nanoscale Physics · Physics 2015-11-24 Neill Lambert , Franco Nori , Christian Flindt

How to utilize topological microcavities to control quantum emission is one of the ongoing research topics in the optical community. In this work, we investigate the emission of quantum emitters in doubly-resonant topological Tamm…

Optics · Physics 2021-08-11 Chenmin Xu , Chong Sheng , Shining Zhu , Hui Liu

Correlation between the rectilinear polarisations of the photons emitted from the biexciton decay in a single quantum dot is investigated in a device which allows the charge-state of the dot to be controlled. Optimising emission from the…

Quantum Physics · Physics 2009-11-13 R. J. Young , S. J. Dewhurst , R. M. Stevenson , A. J. Shields , P. Atkinson , K. Cooper , D. A. Ritchie

Quantum optical systems, like trapped ions, are routinely described by master equations. The purpose of this paper is to introduce a master equation for two-sided optical cavities with spontaneous photon emission. To do so, we use the same…

Quantum Physics · Physics 2015-01-22 Thomas M. Barlow , Robert Bennett , Almut Beige

Quantum optical phenomena are explored in artificial atoms well known as semiconductor quantum dots, in the presence of excitons and biexcitons. The analytical results are obtained using the conventional time-dependent perturbation…

Quantum Physics · Physics 2007-05-23 J. Thomas Andrews

The rate of spontaneous emission is known to depend on the environment of a light source, and the enhancement of one-photon emission in a resonant cavity is known as the Purcell effect. Here we develop a theory of spontaneous two-photon…

Mesoscale and Nanoscale Physics · Physics 2014-05-21 Alexander N. Poddubny , Pavel Ginzburg , Pavel A. Belov , Anatoly V. Zayats , Yuri S. Kivshar

Solid-state emitters are excellent candidates for developing integrated sources of single photons. Yet, phonons degrade the photon indistinguishability both through pure dephasing of the zero-phonon line and through phonon-assisted…

Using two optical pulses of different frequencies, we demonstrate entanglement and disentanglement of the electronic states in Stranski-Krastanov quantum dots. Resonant two-photon excitation of the biexciton creates an entangled Bell-like…

Other Condensed Matter · Physics 2015-06-25 I. A. Akimov , J. T. Andrews , F. Henneberger

We study the role of electron-phonon scattering for a pulse-triggered quantum dot single-photon source which utilizes a modified version of stimulated Raman adiabatic passage and cavity-coupling. This on-demand source is coherently pumped…

Quantum Physics · Physics 2017-08-16 Chris Gustin , Stephen Hughes

We demonstrate cavity-enhanced Raman emission from a single atomic defect in a solid. Our platform is a single silicon-vacancy center in diamond coupled with a monolithic diamond photonic crystal cavity. The cavity enables an unprecedented…

We demonstrate theoretically that the single-photon purity of photons emitted from a quantum dot exciton prepared by phonon-assisted off-resonant excitation can be significantly higher in a wide range of parameters than that obtained by…

Mesoscale and Nanoscale Physics · Physics 2019-07-08 Michael Cosacchi , Florian Ungar , Moritz Cygorek , Alexei Vagov , Vollrath Martin Axt