Self‐assembled quantum dot molecules

L Wang, A Rastelli, S Kiravittaya… - Advanced …, 2009‏ - Wiley Online Library
Semiconductor quantum dot molecules (QDMs) are systems composed of two or more
closely spaced and interacting QDs. QDMs are receiving much attention both as playground …

Electronic excitations in nanostructures: an empirical pseudopotential based approach

G Bester - Journal of Physics: Condensed Matter, 2008‏ - iopscience.iop.org
Physics at the nanoscale has emerged as a field where discoveries of fundamental physical
effects lead to a greater understanding of the solid state. Additionally, the field is believed to …

The inverted singlet–triplet gap: a vanishing myth?

A Dreuw, M Hoffmann - Frontiers in Chemistry, 2023‏ - frontiersin.org
Molecules with an inverted singlet–triplet gap (STG) between the first excited singlet and
triplet states, for example, heptazine, have recently been reported and gained substantial …

Direct observation of controlled coupling in an individual quantum dot molecule

HJ Krenner, M Sabathil, EC Clark, A Kress, D Schuh… - Physical Review Letters, 2005‏ - APS
We report the direct observation of quantum coupling in individual quantum dot molecules
and its manipulation using static electric fields. A pronounced anticrossing of different …

Effects of linear and nonlinear piezoelectricity on the electronic properties of quantum dots

G Bester, A Zunger, X Wu, D Vanderbilt - Physical Review B—Condensed …, 2006‏ - APS
The existence of enormous strain fields in self-assembled quantum dots has led to the
expectation of dramatic effects of piezoelectricity. However, only linear piezoelectric tensors …

Strain effects on the electronic structure of strongly coupled self-assembled quantum dots: Tight-binding approach

W Jaskólski, M Zieliński, GW Bryant, J Aizpurua - Physical Review B …, 2006‏ - APS
We present an atomistic tight-binding study of the electronic structure and optical properties
of vertically stacked, double, self-assembled, InAs∕ GaAs quantum dots. The investigated …

Recent advances in exciton-based quantum information processing in quantum dot nanostructures

HJ Krenner, S Stufler, M Sabathil, EC Clark… - New Journal of …, 2005‏ - iopscience.iop.org
Recent experimental developments in the field of semiconductor quantum dot (QD)
spectroscopy are discussed. Firstly, we report about single QD exciton two-level systems …

Variable orbital coupling in a two-dimensional quantum-dot solid probed on a local scale

P Liljeroth, K Overgaag, A Urbieta, B Grandidier… - Physical review …, 2006‏ - APS
The optoelectronic properties of semiconductor quantum-dot (QD) solids depend on the
electronic structure of the building blocks and their interactions. Disorder may affect the …

Entanglement entropy of electronic excitations

F Plasser - The Journal of Chemical Physics, 2016‏ - pubs.aip.org
A new perspective into correlation effects in electronically excited states is provided through
quantum information theory. The entanglement between the electron and hole …

A solid state source of photon triplets based on quantum dot molecules

M Khoshnegar, T Huber, A Predojević, D Dalacu… - Nature …, 2017‏ - nature.com
Producing advanced quantum states of light is a priority in quantum information
technologies. In this context, experimental realizations of multipartite photon states would …