scholarly journals Dipole matrix element approach versus Peierls approximation for optical conductivity

2012 ◽  
Vol 85 (20) ◽  
Author(s):  
P. Wissgott ◽  
J. Kuneš ◽  
A. Toschi ◽  
K. Held
Keyword(s):  
Matrix Element ◽  
Optical Conductivity ◽  
Dipole Matrix Element ◽  
Element Approach

Electric-dipole matrix-element formulas in hyperspherical coordinates with applications toH−and He

1986 ◽  
Vol 33 (2) ◽  
pp. 1000-1007 ◽  
Author(s):  
Chang-Hwan Park ◽  
Anthony F. Starace ◽  
Jiang Tan ◽  
Chii-Dong Lin
Keyword(s):  
Matrix Element ◽  
Electric Dipole ◽  
Dipole Matrix Element ◽  
Hyperspherical Coordinates

An analytical approach for the energy spectrum and optical properties of gated bilayer graphene

RSC Advances ◽  
2014 ◽  
Vol 4 (61) ◽  
pp. 32117-32126 ◽  
Author(s):  
Cheng-Peng Chang
Keyword(s):  
Optical Properties ◽  
Energy Spectrum ◽  
Matrix Element ◽  
Absorption Spectra ◽  
Analytical Approach ◽  
Bilayer Graphene ◽  
Wave Functions ◽  
Dipole Matrix Element ◽  
Exact Energy

An analytical approach is developed to access the exact energy spectrum, wave functions, dipole matrix element (Mfi) and absorption spectra (A(ω)) of gated Bernal bilayer graphene.

Constant-dipole-matrix-element model for Faraday rotation in amorphous semiconductors

1987 ◽  
Vol 35 (17) ◽  
pp. 9298-9300 ◽  
Author(s):  
B. Vanhuyse ◽  
W. Grevendonk ◽  
G. J. Adriaenssens ◽  
J. Dauwen
Keyword(s):  
Matrix Element ◽  
Faraday Rotation ◽  
Element Model ◽  
Amorphous Semiconductors ◽  
Dipole Matrix Element

scholarly journals Measurement of Spin Correlation intt¯Production Using a Matrix Element Approach

2011 ◽  
Vol 107 (3) ◽  
Author(s):  
V. M. Abazov ◽  
B. Abbott ◽  
B. S. Acharya ◽  
M. Adams ◽  
T. Adams ◽  
...  
Keyword(s):  
Matrix Element ◽  
Spin Correlation ◽  
Element Approach

Subband Structure and Optical Transitions in a Superlattice with Electron Quasi-Localised States in Unit Cell

1999 ◽  
Vol 579 ◽  
Author(s):  
A.V. Dmitriev ◽  
V.V. Makeev
Keyword(s):  
Matrix Element ◽  
Dispersion Relation ◽  
Band Structure ◽  
Electron Spectrum ◽  
Unit Cell ◽  
Wave Functions ◽  
Optical Transitions ◽  
Dipole Matrix Element ◽  
Localised States ◽  
Subband Structure

ABSTRACTWe studied theoretically the electron spectrum and infrared transitions in a superlattice with a unit cell allowing for quasi-localised carrier states. The dispersion relation and the band structure of such a system have been found. We also calculated the dipole matrix element for inter-subband carrier infrared transitions. The wave functions and the electron spectrum in this superlattice show a peculiarity when the energy of a band state approaches the energy of the quasi-localised state in the single cell. In particular, the absorption strength peaks up at the respective frequencies.

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