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Electron-phonon coupling in semiconductor quantum dots plays a significant role in determining the optical properties of excited excitons, especially the spectral nature of emitted photons. This paper presents a comprehensive theory and…

量子物理 · 物理学 2016-06-02 Kaushik Roy-Choudhury , Stephen Hughes

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…

量子物理 · 物理学 2017-08-16 Chris Gustin , Stephen Hughes

The effect of phonons on a nonlinear optical response of a quantum dot-cavity system in quantum strong coupling regime can be accounted for by a fully analytical treatment, provided that the exciton-phonon dynamics is much faster than the…

介观与纳米尺度物理 · 物理学 2023-06-30 L. S. Sirkina , E. A. Muljarov

We model the emission spectrum of a quantum dot embedded in a (e.g. photonic crystal) nanocavity, using a semi-classical approach to describe the matter-field interaction. We start from the simple model of a quantum dot as a two-level…

其他凝聚态物理 · 物理学 2009-03-03 Guillaume Tarel , Vincenzo Savona

For a semiconductor quantum dot strongly coupled to a microcavity, we theoretically investigate phonon-assisted transitions from the exciton to a cavity photon, where the energy mismatch is compensated by phonon emission or absorption. By…

介观与纳米尺度物理 · 物理学 2015-05-14 Ulrich Hohenester

We investigate the influence of the electron-phonon interaction on the decay dynamics of a quantum dot coupled to an optical microcavity. We show that the electron-phonon interaction has important consequences on the dynamics, especially…

介观与纳米尺度物理 · 物理学 2012-08-17 P. Kaer , T. R. Nielsen , P. Lodahl , A. -P. Jauho , J. Mork

The influence of electron--phonon interactions on the dynamics of a quantum dot coupled to a photonic cavity mode is investigated using a nonequilibrium Green's function approach. Within a polaron frame, the self-consistent-Born…

介观与纳米尺度物理 · 物理学 2017-01-11 Gaston Hornecker , Alexia Auffèves , Thomas Grange

Semiconductor quantum dots (QDs) in photonic nanocavities provide monolithic, robust platforms for both quantum information processing and cavity quantum electrodynamics (QED). An inherent feature of such solid-state cavity QED systems is…

介观与纳米尺度物理 · 物理学 2009-08-07 Y. Ota , S. Iwamoto , N. Kumagai , Y. Arakawa

We investigate the influence of electron-phonon interactions on the dynamical properties of a quantum-dot-cavity QED system. We show that non-Markovian effects in the phonon reservoir lead to strong changes in the dynamics, arising from…

介观与纳米尺度物理 · 物理学 2010-04-29 P. Kaer , T. R. Nielsen , P. Lodahl , A. -P. Jauho , J. Mork

We investigate the effect of electron-phonon interactions on the coherence properties of single photons emitted from a semiconductor cavity QED system, i.e. a quantum dot embedded in an optical cavity. The degree of indistinguishability,…

介观与纳米尺度物理 · 物理学 2014-07-23 P. Kaer , J. Mork

A quantum dot strongly coupled to a single high finesse optical microcavity mode constitutes a new fundamental system for quantum optics. Here, the effect of exciton-phonon interactions on reversible quantum-dot cavity coupling is analysed…

量子物理 · 物理学 2009-09-04 I. Wilson-Rae , A. Imamoglu

Electron-phonon coupling is known to play an important role in the charge dynamics of semiconductor quantum dots. Here we explore its role in the combined charge-photon dynamics of cavity-coupled double quantum dots. Previous work on these…

介观与纳米尺度物理 · 物理学 2018-01-17 M. J. Gullans , J. M. Taylor , J. R. Petta

For a single semiconductor quantum dot embedded in a microcavity, we theoretically and experimentally investigate phonon-assisted transitions between excitons and the cavity mode. Within the framework of the independent boson model we find…

介观与纳米尺度物理 · 物理学 2009-12-21 Ulrich Hohenester , Arne Laucht , Michael Kaniber , Norman Hauke , Abbas Mohtashami , Marek Seliger , Jonathan J. Finley

We demonstrate a strong influence of the phonon environment on the coherent dynamics of the quantum dot (QD)-cavity system in the quantum strong coupling regime. This regime is implemented in the nonlinear QD-cavity QED and can be reliably…

介观与纳米尺度物理 · 物理学 2023-10-03 L. S. Sirkina , E. A. Muljarov

We experimentally probe the non-resonant feeding of photons into the optical mode of a two dimensional photonic crystal nanocavity from the discrete emission from a quantum dot. For a strongly coupled system of a single exciton and the…

介观与纳米尺度物理 · 物理学 2011-06-02 A. Laucht , N. Hauke , A. Neumann , T. Günthner , F. Hofbauer , A. Mohtashami , K. Müller , G. Böhm , M. Bichler , M. -C. Amann , M. Kaniber , J. J. Finley

We investigate the influence of exciton-phonon coupling on the dynamics of a strongly coupled quantum dot-photonic crystal cavity system and explore the effects of this interaction on different schemes for non-classical light generation. By…

Emitter dephasing is one of the key issues in the performance of solid-state single photon sources. Among the various sources of dephasing, acoustic phonons play a central role in adding decoherence to the single photon emission. Here, we…

In this paper, we investigate, phonon effects on the optical properties of a spherical quantum dot. For this purpose, we consider the interaction of a spherical quantum dot with classical and quantum fields while the exciton of quantum dot…

量子物理 · 物理学 2011-12-30 M. Bagheri Harouni , R. Roknizadeh , M. H. Naderi

We investigate a quantum dot (QD) system coupled to a vibrational environment with a super-Ohmic spectral density and weakly to a leaky cavity mode, a model relevant for semiconductor-based single-photon sources. The phonon coupling induces…

介观与纳米尺度物理 · 物理学 2024-12-31 Sebastian Toivonen , Kimmo Luoma

While the semiconductor quantum dot placed in a solid-state material allows for deterministic emission of single photons, the photon indistinguishability is strongly influenced by the intrinsic coupling to lattice vibrations, phonons, of…

介观与纳米尺度物理 · 物理学 2024-10-10 José Ferreira Neto , Matias Bundgaard-Nielsen , Niels Gregersen , Luca Vannucci
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