Publication

Dressed semiconductor bloch equations: coherence versus Coulomb scattering in resonantly excited quantum wells

Vincenzo Savona
1999
Conference Papers

Abstract

We investigate the role of Coulomb correlation in an electron-hole gas that is strongly driven by an optical pump. Coulomb scattering is treated including Born diagrams and the light-dressing of the carriers is consistently included. When the pump is spectrally tuned at the excitonic resonance, the Born correlation is found to weakly affect the fully coherent Hartree-Fock results. Our model calculations fully support recent and quite unexpected observations of excitonic Rabi oscillations in III-V quantum wells. (C) 1999 Elsevier Science B.V. All rights reserved.

Official source

https://infoscience.epfl.ch/entities/publication/6a73b417-5fb1-4cb6-afd7-74d3d06830ef

About this result

This page is automatically generated and may contain information that is not correct, complete, up-to-date, or relevant to your search query. The same applies to every other page on this website. Please make sure to verify the information with EPFL's official sources.

Graph Chat

Chat with Graph Search

Ask any question about EPFL courses, lectures, exercises, research, news, etc. or try the example questions below.

DISCLAIMER: The Graph Chatbot is not programmed to provide explicit or categorical answers to your questions. Rather, it transforms your questions into API requests that are distributed across the various IT services officially administered by EPFL. Its purpose is solely to collect and recommend relevant references to content that you can explore to help you answer your questions.

Vincenzo Savona
1999
Conference Papers

Abstract

Official source

https://infoscience.epfl.ch/entities/publication/6a73b417-5fb1-4cb6-afd7-74d3d06830ef

About this result

Related concepts (31)

Electronic correlation

Electronic correlation is the interaction between electrons in the electronic structure of a quantum system. The correlation energy is a measure of how much the movement of one electron is influenced by the presence of all other electrons. Within the Hartree–Fock method of quantum chemistry, the antisymmetric wave function is approximated by a single Slater determinant. Exact wave functions, however, cannot generally be expressed as single determinants.

Free electron model

In solid-state physics, the free electron model is a quantum mechanical model for the behaviour of charge carriers in a metallic solid. It was developed in 1927, principally by Arnold Sommerfeld, who combined the classical Drude model with quantum mechanical Fermi–Dirac statistics and hence it is also known as the Drude–Sommerfeld model.

Fermi gas

A Fermi gas is an idealized model, an ensemble of many non-interacting fermions. Fermions are particles that obey Fermi–Dirac statistics, like electrons, protons, and neutrons, and, in general, particles with half-integer spin. These statistics determine the energy distribution of fermions in a Fermi gas in thermal equilibrium, and is characterized by their number density, temperature, and the set of available energy states. The model is named after the Italian physicist Enrico Fermi.

Related publications (26)

Dressed semiconductor bloch equations: coherence versus Coulomb scattering in resonantly excited quantum wells

Chat with Graph Search

Resistivity Anomalies Arising From Spin Correlations in Magnetic Metals

Experimental Specialization Semester in Resonant Inelastic X-Ray Scattering on Quantum Materials

Two-dimensional magnetic materials from first principles