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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

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

We present a detailed theoretical study of non-Markovian dynamics in the fluorescence spectrum of a driven semiconductor quantum dot (QD), embedded in a cavity and coupled to a three-dimensional (3D) acoustic phonon reservoir. In…

介观与纳米尺度物理 · 物理学 2018-08-14 Abhishek Kumar

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 study the fundamental limit on single-photon indistinguishability imposed by decoherence due to phonon interactions in semiconductor quantum dot-cavity QED systems. Employing an exact diagonalization approach we find large differences…

介观与纳米尺度物理 · 物理学 2015-03-20 P. Kaer , P. Lodahl , A. -P. Jauho , J. Mork

We present a medium-dependent quantum optics approach to describe the influence of electron-acoustic phonon coupling on the emission spectra of a strongly coupled quantum-dot cavity system. Using a canonical Hamiltonian for light…

介观与纳米尺度物理 · 物理学 2011-05-03 S. Hughes , P. Yao , F. Milde , A. Knorr , D. Dalacu , K. Mnaymneh , V. Sazonova , P. J. Poole , G. C. Aers , J. Lapointe , R. Cheriton , R. L. Williams

We demonstrate that electron-phonon interaction in quantum dots embedded in one-dimensional systems leads to pronounced, non-Markovian decoherence of optical transitions. The experiments we present focus on the lineshape of…

介观与纳米尺度物理 · 物理学 2012-09-18 Christophe Galland , Alexander Högele , Hakan E. Türeci , Ataç Imamoğlu

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 discuss phonon-induced non-Markovian and Markovian features in QD-based optics. We cover lineshapes in linear absorption experiments, phonon-induced incoherence in the Heitler regime, and memory correlations in two-photon coherences. To…

量子物理 · 物理学 2019-04-25 Alexander Carmele , Stephan Reitzenstein

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

We employ detuning-dependent decay-rate measurements of a quantum dot in a photonic-crystal cavity to study the influence of phonon dephasing in a solid-state quantum-electrodynamics experiment. The experimental data agree with a…

介观与纳米尺度物理 · 物理学 2013-08-08 K. H. Madsen , P. Kaer , A. Kreiner-Møller , S. Stobbe , A. Nysteen , J. Mørk , P. Lodahl

Phonon interactions in solid-state photonics systems cause intrinsic quantum decoherence and often present the limiting factor in emerging quantum technology. Due to recent developments in nanophotonics, exciton-cavity structures with very…

量子物理 · 物理学 2021-01-04 Emil V. Denning , Matias Bundgaard-Nielsen , Jesper Mork

We provide a self-contained review of master equation approaches to modelling phonon effects in optically driven self-assembled quantum dots. Coupling of the (quasi) two-level excitonic system to phonons leads to dissipation and dephasing,…

介观与纳米尺度物理 · 物理学 2016-06-14 Ahsan Nazir , Dara P. S. McCutcheon

We investigate the dynamics of a double quantum dot charge qubit which is coupled to piezoelectric acoustic phonons, appropriate for GaAs heterostructures. At low temperatures, the phonon bath induces a non-Markovian dynamical behavior of…

介观与纳米尺度物理 · 物理学 2007-05-23 M. Thorwart , J. Eckel , E. R. Mucciolo

Phonon interactions are inevitable in cavity quantum electrodynamical systems based on solid-state emitters or fluorescent molecules, where vibrations of the lattice or chemical bonds couple to the electronic degrees of freedom. Due to the…

量子物理 · 物理学 2021-06-16 Matias Bundgaard-Nielsen , Jesper Mørk , Emil Vosmar Denning

The generation of photons in a microcavity coupled to a laser-driven quantum dot interacting with longitudinal acoustic (LA) phonons is studied in the regime of simultaneously strong driving and strong dot-cavity coupling. The stationary…

介观与纳米尺度物理 · 物理学 2017-11-29 Moritz Cygorek , Andreas M. Barth , Florian Ungar , Alexei Vagov , Vollrath Martin Axt

Semiconductor quantum dots (QDs) have been demonstrated to be versatile candidates to study the fundamentals of light-matter interaction [1-3]. In contrast with atom optics, dissipative processes are induced by the inherent coupling to the…

介观与纳米尺度物理 · 物理学 2013-10-25 Alexander Carmele , Andreas Knorr , Frank Milde

Differences in the confinement of electrons and holes in quantum dots are shown to profoundly impact the magnitude of scattering with acoustic phonons in materials where crystal deformation shifts the conduction and valence band in the same…

介观与纳米尺度物理 · 物理学 2013-04-03 A. Nysteen , P. Kaer , J. Mork

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
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