scholarly journals Density-matrix theory of the optical dynamics and transport in quantum cascade structures: The role of coherence

2009 ◽  
Vol 79 (16) ◽  
Author(s):  
C. Weber ◽  
A. Wacker ◽  
A. Knorr
Keyword(s):  
Density Matrix ◽  
Matrix Theory ◽  
Quantum Cascade ◽  
Density Matrix Theory ◽  
Quantum Cascade Structures

scholarly journals Density matrix theory of transport and gain in quantum cascade lasers in a magnetic field

2007 ◽  
Vol 76 (16) ◽  
Author(s):  
Ivana Savić ◽  
Nenad Vukmirović ◽  
Zoran Ikonić ◽  
Dragan Indjin ◽  
Robert W. Kelsall ◽  
...  
Keyword(s):  
Magnetic Field ◽  
Density Matrix ◽  
Matrix Theory ◽  
Quantum Cascade Lasers ◽  
Quantum Cascade ◽  
Density Matrix Theory ◽  
Cascade Lasers

c. Internal rotation of the nitroso group in p-substituted nitrosoanilines by the density matrix line-shape method

1974 ◽  
Vol 27 (1) ◽  
pp. 21 ◽  
Author(s):  
PD Buckley ◽  
AR Furness ◽  
KW Jolley ◽  
DN Pinder
Keyword(s):  
Density Matrix ◽  
Internal Rotation ◽  
Line Shape ◽  
Matrix Theory ◽  
Activation Parameters ◽  
Nitroso Group ◽  
Approximate Methods ◽  
Density Matrix Theory

Density matrix theory has been applied to study the barrier to internal rotation about the Ar-NO bond in N,N-dimethyl-p-nitrosoaniline and N,N-diethyl-p-nitrosoaniline. Theoretical fits to experimental n.m.r. spectra have been obtained in the range - 30°C to +40°C. Activation parameters have been determined and compared with those obtained by more approximate methods.

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