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Interfacing single emitters and photonic nanostructures enables modifying their emission properties, such as enhancing individual decay rates or controlling the emission direction. To achieve full control, the single emitter must be…

The experimental binding energies of single-particle and single-hole neutron states belonging to neutron shells that extend from N = 126 to 184 and 82 to 126 respectively, have been reproduced by solving the Schr\"{o}dinger equation with a…

Nuclear Theory · Physics 2016-08-24 J. A. Liendo , E. Castro , R. Gómez , D. D. Caussyn

In this work we make further studies of the quadrupole quadrupole interaction used in shell model calculations.Whereas in a previous work we adjusted the single particle energies so as to obtain the rotatonal spectrum of the Elliott model,…

Nuclear Theory · Physics 2021-04-06 Mingyang Ma , Praveen C Srivastava , Larry Zamick

Electron spin relaxation in nanowire-based quantum dots induced by confined phonons is investigated theoretically. Due to the one-dimensional nature of the confined phonons, the van Hove singularities of the confined phonons and the zero of…

Mesoscale and Nanoscale Physics · Physics 2010-09-27 Y. Yin , M. W. Wu

Solution processible colloidal quantum dots hold great promise for realizing single-photon sources embedded into scalable quantum technology platforms. However, the high-yield integration of large numbers of individually addressable…

Deformation properties of weakly bound nuclei are discussed in the deformed single-particle model. It is demonstrated that in the limit of a very small binding energy the valence particles in specific orbitals, characterized by a very small…

Nuclear Theory · Physics 2009-10-30 T. Misu , W. Nazarewicz , S. Aberg

We demonstrate that the spin of a Cr atom in a quantum dot (QD) can be controlled optically and we discuss the main properties of this single spin system. The photoluminescence of individual Cr-doped QDs and their evolution in magnetic…

Mesoscale and Nanoscale Physics · Physics 2019-11-27 L. Besombes , H. Boukari , V. Tiwari , A. Lafuente-Sampietro , S. Kuroda , K. Makita

We investigate the effects of point charge defects on the single particle electronic structure, emission energies, fine structure splitting and oscillator strengths of excitonic transitions in strained In$_{0.6}$Ga$_{0.4}$As/GaAs and…

Mesoscale and Nanoscale Physics · Physics 2015-06-04 Ranber Singh , Gabriel Bester

We present a theoretical study of the unielectronic energy spectra, electron localization, and optical absorption of triangular core-shell quantum rings. We show how these properties depend on geometric details of the triangle, such as side…

Mesoscale and Nanoscale Physics · Physics 2016-05-04 Anna Sitek , Gunnar Thorgilsson , Vidar Gudmundsson , Andrei Manolescu

The properties of nucleus-acoustic (NA) solitary waves (SWs) and double layers (DLs) in a four-component magnetized degenerate quantum plasma system (containing non-degenerate inertial light nuclei, both non-relativistically and…

Plasma Physics · Physics 2017-07-19 B. Hosen. M. G. Shah , M. R. Hossen , A. A. Mamun

The electronic structure and size-scaling of optoelectronic properties in cycloparaphenylene carbon nanorings are investigated using time-dependent density functional theory (TDDFT). The TDDFT calculations on these molecular nanostructures…

Chemical Physics · Physics 2009-12-24 Bryan M. Wong

We observe two-fold shell filling in the spectra of closed one-dimensional quantum dots formed in single-wall carbon nanotubes. Its signatures include a bimodal distribution of addition energies, correlations in the excitation spectra for…

Mesoscale and Nanoscale Physics · Physics 2009-11-07 David H. Cobden , Jesper Nygard

We report the design, fabrication and optical investigation of electrically tunable single quantum dot - photonic crystal defect nanocavities operating in both the weak and strong coupling regimes of the light matter interaction. Unlike…

Materials Science · Physics 2009-12-21 A. Laucht , F. Hofbauer , N. Hauke , J. Angele , S. Stobbe , M. Kaniber , G. Böhm , P. Lodahl , M. -C. Amann , J. J. Finley

he properties of excitons formed in spherical quantum dots are studied using the $\mathbf{k}\cdot\mathbf{p}$ method within the Hartree approximation. The spherical quantum dots considered have a central core and several concentric layers of…

Mesoscale and Nanoscale Physics · Physics 2019-10-11 Mariano Garagiola , Omar Osenda

Coupled colloidal quantum dot molecules composed of two fused CdSe/CdS core/shell sphere monomers were recently presented. Upon fusion, the potential energy landscape is changing into two quantum dots separated by a pre-tuned potential…

Mesoscale and Nanoscale Physics · Physics 2019-12-11 Yossef E. Panfil , Doaa Shamalia , Jiabin Cui , Somnath Koley , Uri Banin

A complete numerical description of the charge and spin dynamics of a two-electron system confined in narrow nanowire quantum dots under oscillating electric field is presented in the context of recent electric dipole spin resonance…

Mesoscale and Nanoscale Physics · Physics 2014-05-14 M. P. Nowak , B. Szafran

In this study, we have performed a detailed investigation of the electronic properties of a core/shell/well/shell multi-layered spherical quantum dot, such as energy eigenvalues, wave functions, electron probability distribution and binding…

Mesoscale and Nanoscale Physics · Physics 2013-05-07 Hatice Taş , Mehmet Sahin

The quantum states of a system of particles in a finite spatial domain in general consist of a set of discrete energy eigenvalues; these are usually grouped into bunches of degenerate or close-lying levels, called shells. In fermionic…

Mesoscale and Nanoscale Physics · Physics 2022-09-21 A. I. Yanson , I. K. Yanson , J. M. van Ruitenbeek

Multielectron semiconductor quantum dots (QDs) provide a novel platform to study the role of Coulomb correlations in finite quantum systems and their impact on many-body energy spectra. An example is the formation of interaction-driven,…

We study the band structure of semiconductor nanowires with quantum dots embedded in them. The band structure is calculated using the Rayleigh-Ritz variational method. We consider quantum dots of two different types, one type is defined by…

Mesoscale and Nanoscale Physics · Physics 2022-07-13 Natalia Giovenale , Omar Osenda}
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