scholarly journals Two-body Wigner molecularization in asymmetric quantum dot spin qubits

2021 ◽  
Vol 104 (19) ◽  
Author(s):  
José C. Abadillo-Uriel ◽  
Biel Martinez ◽  
Michele Filippone ◽  
Yann-Michel Niquet
Keyword(s):  
Quantum Dot ◽  
Spin Qubits ◽  
Asymmetric Quantum Dot ◽  
Asymmetric Quantum

Asymmetric Quantum-Dot Pixelation for Color-Converted White Balance

ACS Photonics ◽  
2021 ◽  
Author(s):  
Enguo Chen ◽  
Jianyao Lin ◽  
Tao Yang ◽  
Yu Chen ◽  
Xiang Zhang ◽  
...  
Keyword(s):  
Quantum Dot ◽  
White Balance ◽  
Asymmetric Quantum Dot ◽  
Asymmetric Quantum

OPTICAL PHONON EFFECT IN AN ASYMMETRIC QUANTUM DOT QUBIT

2012 ◽  
Vol 10 (07) ◽  
pp. 1250077 ◽  
Author(s):  
ZHAO-HUA DING ◽  
YONG SUN ◽  
JING-LIN XIAO
Keyword(s):  
Quantum Dot ◽  
Excited States ◽  
Oscillation Period ◽  
Present System ◽  
Superposition State ◽  
Strongly Coupled ◽  
Asymmetric Quantum Dot ◽  
Asymmetric Quantum ◽  
Electron Phonon Coupling ◽  
Increasing Function

We investigate the eigenenergies and the eigenfunctions of the ground and the first excited states of an electron, which is strongly coupled to LO-phonon in an asymmetric quantum dot (QD) by using variational method of Pekar type. The present system may be used as a two-level qubit. When the electron is in the superposition state of the ground and the first excited states, the probability density of the electron oscillates in the QD with a certain period. It is found that the oscillation period is an increasing function of the transverse and the longitudinal effective confinement lengths of the QD, whereas it is a decreasing one of the electron–phonon coupling strength.

Excitation transfer in self-organized asymmetric quantum dot pairs

1998 ◽  
Vol 58 (16) ◽  
pp. R10151-R10154 ◽  
Author(s):  
R. Heitz ◽  
I. Mukhametzhanov ◽  
P. Chen ◽  
A. Madhukar
Keyword(s):  
Quantum Dot ◽  
Excitation Transfer ◽  
Self Organized ◽  
Asymmetric Quantum Dot ◽  
Asymmetric Quantum

EFFECTIVE MASS OF STRONG-COUPLED BOUND POLARON IN AN ASYMMETRIC QUANTUM DOT INDUCED WITH RASHBA EFFECT

2011 ◽  
Vol 10 (03) ◽  
pp. 501-505 ◽  
Author(s):  
ZHIXIN LI ◽  
JUAN XIAO ◽  
AIYONG LIU ◽  
JINGLIN XIAO
Keyword(s):  
Quantum Dot ◽  
Effective Mass ◽  
Operator Method ◽  
Transformation Method ◽  
Rashba Effect ◽  
Linear Combination Operator ◽  
Polaron Model ◽  
Bound Polaron ◽  
Asymmetric Quantum Dot ◽  
Asymmetric Quantum

In this paper, on the basis of Huybrechs' strong-coupled polaron model, the Tokuda-modified linear-combination operator method and the unitary transformation method are used to study the properties of the strong-coupled bound polaron considering the influence of Rashba effect, which is brought by the spin-orbit (SO) interaction, in an asymmetric quantum dot (QD). The expression for the effective mass of the polaron as functions of the transverse and longitudinal bound strengths, velocity, vibration frequency, and the bound potential has been derived. After a simple numerical calculation on the RbCl crystal, we found that the total effective mass of the bound polaron is composed of three parts. The interaction between the orbit and the spin with different directions has different effects on the effective mass of the bound polaron.

The effect of hydrogen-like impurity on RbCl asymmetric quantum dot qubit

2015 ◽  
Vol 89 (12) ◽  
pp. 1247-1250 ◽  
Author(s):  
Z.-H. Liang ◽  
B. Qi ◽  
J.-L. Xiao
Keyword(s):  
Quantum Dot ◽  
Asymmetric Quantum Dot ◽  
Asymmetric Quantum
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