Optical spectra of nitride quantum-dot systems: From tight-binding states to many-body effects

2011 ◽  
Vol 248 (8) ◽  
pp. 1871-1878 ◽  
Author(s):  
J. Seebeck ◽  
M. Lorke ◽  
S. Schulz ◽  
K. Schuh ◽  
P. Gartner ◽  
...  
Keyword(s):  
Quantum Dot ◽  
Tight Binding ◽  
Optical Spectra ◽  
Many Body ◽  
Many Body Effects

Negative differential gain in quantum dot systems: Interplay of structural properties and many-body effects

2014 ◽  
Vol 104 (24) ◽  
pp. 242108 ◽  
Author(s):  
E. Goldmann ◽  
M. Lorke ◽  
T. Frauenheim ◽  
F. Jahnke
Keyword(s):  
Quantum Dot ◽  
Structural Properties ◽  
Many Body ◽  
Differential Gain ◽  
Many Body Effects

Many-body effects in transport through a quantum-dot cavity system

2018 ◽  
Vol 97 (19) ◽  
Author(s):  
I. V. Dinu ◽  
V. Moldoveanu ◽  
P. Gartner
Keyword(s):  
Quantum Dot ◽  
Many Body ◽  
Cavity System ◽  
Many Body Effects

Many-body effects in transport through a quantum dot

1996 ◽  
Vol 53 (7) ◽  
pp. 3901-3911 ◽  
Author(s):  
Yukihiro Tanaka ◽  
Hiroshi Akera
Keyword(s):  
Quantum Dot ◽  
Many Body ◽  
Many Body Effects

Ab-Initio Calculations for the Electronic Spectra of Cubic and Hexagonal Boron Nitride

2004 ◽  
Vol 829 ◽  
Author(s):  
Guido Satta ◽  
Giancarlo Cappellini ◽  
Valerio Olevano ◽  
Lucia Reining
Keyword(s):  
Boron Nitride ◽  
Random Phase Approximation ◽  
Density Functional ◽  
Hexagonal Boron Nitride ◽  
Random Phase ◽  
Optical Spectra ◽  
Many Body ◽  
Self Energy ◽  
Many Body Effects ◽  
Excitonic Effects

ABSTRACTWe present state of the art fist-principles calculations for the optical spectra and the loss functions of bulk boron nitride in the cubic (c-BN) and in the hexagonal (h-BN) phases. We start from a DFT-LDA density functional Khon-Sham bandstructure to investigate the influence of many-body effects beyond the Random Phase Approximation (RPA) on the optical spectra through the inclusion of self-energy and excitonic effects by a GW calculation and the solution of the Bethe-Salpeter equation. For the loss function we only perform RPA calculations. We show to which extent the description of many-body effects is important for a meaningiful comparison with experiment, and when they can be neglected.

scholarly journals Dominant role of many-body effects on the carrier distribution function of quantum dot lasers

2016 ◽  
Vol 9 (3) ◽  
pp. 032705 ◽  
Author(s):  
Negin Peyvast ◽  
Kejia Zhou ◽  
Richard A. Hogg ◽  
David T. D. Childs
Keyword(s):  
Distribution Function ◽  
Quantum Dot ◽  
Dominant Role ◽  
Quantum Dot Lasers ◽  
Many Body ◽  
Carrier Distribution ◽  
Many Body Effects

Many-body effects and self-contained phase dynamics in an optically injected quantum-dot laser

2012 ◽  
Author(s):  
Benjamin Lingnau ◽  
Kathy Lüdge ◽  
Weng W. Chow ◽  
Eckehard Schöll
Keyword(s):  
Quantum Dot ◽  
Many Body ◽  
Phase Dynamics ◽  
Quantum Dot Laser ◽  
Many Body Effects

scholarly journals Many-body effects in InAs/GaAs quantum dot laser structures

2010 ◽  
Vol 97 (14) ◽  
pp. 141102 ◽  
Author(s):  
I. O’Driscoll ◽  
M. Hutchings ◽  
P. M. Smowton ◽  
P. Blood
Keyword(s):  
Quantum Dot ◽  
Many Body ◽  
Quantum Dot Laser ◽  
Many Body Effects ◽  
Gaas Quantum Dot
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