Title




Polarons in semiconductor quantum structures
 
Author




 
Abstract




In this presentation three recent contributions to the theory of continuum (or "Frohlich") polarons are reviewed. (i) Using a generalization of the JensenFeymnan variational principle within the pathintegral formalism for identical particles, the groundstate energy of a confined Npolaron system is studied as a function of N and of the electronphonon coupling strength. (ii) A theoretical investigation of the optical properties of stacked quantum dots is presented, which is based on the nonadiabatic approach. (iii) Cyclotronresonance (CR) spectra of a gas of interacting polarons in a GaAs/AlAs quantum well are theoretically investigated taking into account the magnetoplasmonphonon mixing and the band nonparabolicity. The theory explains that, for a highdensity polaron gas, anticrossing of the CR spectra occurs near the GaAs TOphonon frequency rather than near the GaAs LOfrequency in a good agreement with experimental data. 
 
Language




English
 
Source (journal)




NATO science series: series II : mathematics, physics and chemistry.  London
 
Source (book)




NATO Advanced Research Workshop on Molecular Nanowires and Other Quantum, Objects, SEP 0709, 2003, Bled, SLOVENIA
 
Publication




Dordrecht
:
Springer
,
2004
 
ISBN




1402020694
 
Volume/pages




148
(2004)
, p. 139150
 
ISI




000222494700014
 
