6533b822fe1ef96bd127cbdc
RESEARCH PRODUCT
Renormalization of the Fröhlich constant for electrons in a quantum dot
Witold JacakLucjan JacakJ. Krasnyjsubject
PhysicsPhotoluminescenceCondensed matter physicsCondensed Matter::OtherPhononGeneral Physics and AstronomyElectronFermionCondensed Matter::Mesoscopic Systems and Quantum Hall EffectMagnetic fieldRenormalizationCondensed Matter::Materials ScienceQuantum dotLeptondescription
Recent experimental investigations of far-infrared attenuation in GaAs/InAs quantum dot in magnetic field and measurements of photoluminescence features for smaller pyramid-shape GaAs/InAs quantum dots indicated an enhancement of coupling of longitudinal optical phonons with confined electrons, which manifested itself in a significant increase of the effective Frohlich constant in comparison to its bulk value. We give a simple quasiclassical explanation of this enhancement and relate the renormalization of the Frohlich constant with the dot diameter.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2002-11-01 | Physics Letters A |