Publication

Optical signatures of energy-level statistics in a disordered quantum system

Publications associées (60)

Controlling Biological Functions

A review. Manipulation of the quantum properties of matter can influence the course of biochem. reactions. Can biol. functions, such as vision or photosynthesis, that are driven by incoherent phenomena have anything to do with quantum mechanics, where the ...

2006

Quantum Dot Exciton Dynamics Probed by Photon-Correlation Spectroscopy

Elyahou Kapon, Daniel Oberli, Martin Henrik Baier

The dynamics of charging and recombination of photoexcited, site-controlled semiconductor quantum dots (QDs) are investigated using microphotoluminescence (PL) and photon-correlation spectroscopy combined with rate equation modeling. Several species of neu ...

2006

Quantum-dot exciton dynamics probed by photon-correlation spectroscopy

Elyahou Kapon, Daniel Oberli, Martin Henrik Baier

2006

Dephasing representation: Employing the shadowing theorem to calculate quantum correlation functions

Jiri Vanicek

Due to the Heisenberg uncertainty principle, various classical systems differing only on the scale smaller than Planck's cell correspond to the same quantum system. We use this fact to find a unique semiclassical representation without the Van Vleck determ ...

2004

Many-body interaction evidenced through exciton-trion-electron correlated dynamics

Benoît Marie Joseph Deveaud, Jean Berney, Marcia Portella Oberli, Victoria Ciulin

Interactions among excitons, trions, and electrons are studied in CdTe modulation-doped quantum wells. These many-body interactions are investigated through the nonlinear dynamical properties in the excitonic complexes using time and spectrally resolved pu ...

2004

Quantum mechanical repulsion of exciton levels in a disordered quantum well

Vincenzo Savona

Spatially resolved photoluminescence spectra of a single quantum well are recorded by near-field spectroscopy. A set of over four hundred spectra displaying sharp emission lines from localized excitons is subject to a statistical analysis of the two-energy ...

2001

Photoluminescence excitation spectroscopy of MBE grown InGaN quantum wells and quantum boxes

Nicolas Grandjean

Photoluminescence excitation (PLE) spectroscopy was carried out to investigate the excitation/emission cycle of MBE grown InGaN quantum structures. Quantum well and Stranski-Krastanov type quantum box samples were chosen that emit from blue to red. The ban ...

2001

Long range orders in models of itinerant electrons interacting with heavy quantum fields

Nicolas Macris

The Falicov–Kimball model consists of itinerant lattice fermions interacting with Ising spins by an on-site potential of strength U. Kennedy and Lieb proved that at half filling there is a low temperature phase with chessboard long range order on Zd, d \ 2 ...

2001

Magnetophotoluminescence of GaN/AlxGa1-xN quantum wells: Valence band reordering and excitonic binding energies

Nicolas Grandjean

A reordered valence band in GaN/AlxGa1-xN quantum wells with respect to GaN epilayers has been found as a result of the observation of an enhanced g factor (g*similar to3) in magnetoluminescence spectra in fields up to 55 T. This has been caused by a rever ...

2001

Resonant Rayleigh scattering on quantum well excitons: Theory and experiment

Benoît Marie Joseph Deveaud, Vincenzo Savona

Time-resolved up-conversion measurements of secondary emission from multiple quantum wells under resonant femtosecond excitation are reported for GaAs multiple quantum wells with qualitatively different interface disorder. The transient resonant Rayleigh s ...

2000

Graph Chatbot

Chattez avec Graph Search

Posez n’importe quelle question sur les cours, conférences, exercices, recherches, actualités, etc. de l’EPFL ou essayez les exemples de questions ci-dessous.

AVERTISSEMENT : Le chatbot Graph n'est pas programmé pour fournir des réponses explicites ou catégoriques à vos questions. Il transforme plutôt vos questions en demandes API qui sont distribuées aux différents services informatiques officiellement administrés par l'EPFL. Son but est uniquement de collecter et de recommander des références pertinentes à des contenus que vous pouvez explorer pour vous aider à répondre à vos questions.

Connectez-vous pour utiliser Chat avec Graph Search