Momentum-matrix-element calculation using pseudopotentials

1997 ◽  
Vol 56 (23) ◽  
pp. 14985-14992 ◽  
Author(s):  
Hiroyuki Kageshima ◽  
Kenji Shiraishi
Keyword(s):  
Matrix Element ◽  
Element Calculation ◽  
Momentum Matrix Element

APW Approach to the Momentum Matrix Element Calculation

1983 ◽  
Vol 118 (2) ◽  
pp. K121-K124 ◽  
Author(s):  
I. I. Gegusin ◽  
V. N. Datsyuk
Keyword(s):  
Matrix Element ◽  
Element Calculation ◽  
Momentum Matrix Element

Momentum matrix element and conduction band nonparabolicity in wurtzite GaN

2005 ◽  
Vol 86 (16) ◽  
pp. 161908 ◽  
Author(s):  
S. Shokhovets ◽  
G. Gobsch ◽  
O. Ambacher
Keyword(s):  
Matrix Element ◽  
Conduction Band ◽  
Momentum Matrix Element ◽  
Band Nonparabolicity

Radiative carrier lifetime, momentum matrix element, and hole effective mass in GaN

1997 ◽  
Vol 70 (5) ◽  
pp. 631-633 ◽  
Author(s):  
J. S. Im ◽  
A. Moritz ◽  
F. Steuber ◽  
V. Härle ◽  
F. Scholz ◽  
...  
Keyword(s):  
Matrix Element ◽  
Effective Mass ◽  
Carrier Lifetime ◽  
Hole Effective Mass ◽  
Momentum Matrix Element

scholarly journals TOP PRODUCTION AND DECAY AT LINEAR COLLIDERS: QCD CORRECTIONS

2001 ◽  
Vol 16 (supp01a) ◽  
pp. 369-371
Author(s):  
COSMIN MACESANU ◽  
LYNNE H. ORR
Keyword(s):  
Matrix Element ◽  
Quark Mass ◽  
Mass Measurement ◽  
High Energy ◽  
High Energy Electron ◽  
Element Calculation ◽  
Spin Correlations ◽  
Electron Positron ◽  
The Matrix ◽  
Top Mass

We present the results of an exact calculation of gluon radiation in top production and decay at high energy electron-positron colliders. We include all spin correlations and interferences, the bottom quark mass, and finite top width effects in the matrix element calculation. We study properties of the radiated gluons and implications for top mass measurement. We also discuss virtual corrections to the process.

scholarly journals Gain Calculation in a Quantum Well Laser Simulator Using an Eight Band k.p Model

VLSI Design ◽  
1998 ◽  
Vol 6 (1-4) ◽  
pp. 367-371 ◽  
Author(s):  
F. Oyafuso ◽  
P. von Allmen ◽  
M. Grupen ◽  
K. Hess
Keyword(s):  
Matrix Element ◽  
Quantum Well ◽  
Electronic Band Structure ◽  
Rate Equations ◽  
Band Model ◽  
Drift Diffusion ◽  
Constant Matrix ◽  
Electronic Band ◽  
Quantum Well Laser ◽  
Momentum Matrix Element

Effects of non-parabolicity and band-warping of the energy dispersion are entered in a quantum well laser simulator (MINILASE-II), which self-consistently solves Schödinger's equation, Poisson's equation, the drift diffusion equations, and the photon rate equations. An eight band k.p model is used to determine the electronic band structure for a strained-layer In.2Ga.8As/Al.1Ga.9As system. The k.p calculation is performed independently of the laser simulator, and exported to MINILASE-II in the form of a density of states and an energydependent averaged momentum matrix element. The results obtained for the gain and modulation response are compared to those obtained from a parabolic band model with a constant matrix element.

Matrix element calculation and a selection rule in the unitary group approach

1985 ◽  
Vol 63 (9) ◽  
pp. 1151-1156 ◽  
Author(s):  
A. Lev ◽  
M. Schlesinger ◽  
G. W. F. Drake ◽  
R. D. Kent
Keyword(s):  
Matrix Element ◽  
Atomic Structure ◽  
Unitary Group ◽  
Selection Rule ◽  
Closed Form Expression ◽  
Matrix Elements ◽  
Element Calculation ◽  
Form Expression ◽  
Group Approach ◽  
Unitary Group Approach

A closed form expression for the evaluation of many-electron matrix elements in the unitary group approach to the theory of atomic structure is presented in terms of simple factors. In addition, a new selection rule for nonvanishing matrix elements is given.

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