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Effects of variable anisotropic-strain on the emission of neutral excitons confined in epitaxial quantum dots
Effects of variable anisotropic-strain neutral excitons epitaxial quantum dots
2010/11/22
We study the e ect of elastic anisotropic biaxial strain on the light emitted by neutral excitons confined in di erent kinds of semiconductor quantum dots (QDs). We find that the light polarization ro...
Spin Correlation Effects in Top Quark Pair Production at the LHC
Large Hadron Collider Spin Correlation Top Quark Pair Production
2010/3/15
At a 14 TeV proton-proton collider, the Large Hadron Collider (LHC), we show that top quark pair production is dominated at low invariant mass by the fusion of two like-helicity gluons, producing top ...
Elementary Statistical Models for Vector Collision-Sequence Interference Effects with Poisson-Distributed Collision Times
Elementary Statistical Models Collision Times Vector Collision-Sequence
2009/9/4
In a recent paper (Lewis, 2008) a class of models suitable for application to collision-sequence interference was introduced. In these models velocities are assumed to be completely randomized in each...
DC Electric Field Effects on the Electron Dynamics in Double Rectangular Quantum Dots
Coupled quantum dots DC bias Coherence Relaxation
2010/9/25
The effect of a dc electric field on the temporal evolution of an electron in a double rectangular quantum dot is explored in this work. In the framework of the effective mass approximation, first-ord...
Donor-Related Optical Absorption Spectra for a GaAs-Ga0.7Al0.3As Double Quantum Well under Hydrostatic Pressure and Applied Electric Field Effects
Electric field Hydrostatic pressure Quantum well Absorption spectra
2010/9/25
The hydrostatic-pressure and applied electric field dependencies of the binding energy and the opticalabsorption spectra, associated with transitions between the n = 1 valence subband and the donor-im...
Electric and Magnetic Field Effects on Electronic Structure of Straight and Toroidal Carbon Nanotubes
Electric and Magnetic Field Effects Electronic Structure Straight and Toroidal Carbon Nanotubes
2010/10/22
Nanotubes have been proved as promising candidates for many technological applications in the nanoscale word and different physical properties have been studied and measured along the few recent years...