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46 papers · 1 filter
Excitation transfer and luminescence in porphyrin-carbon nanotube complexes
G. Magadur, Jean-Sébastien Lauret, V. Alain-Rizzo +4
Functionalization of carbon nanotubes with hydrosoluble porphyrins (TPPS) is achieved by "-stacking". The porphyrin/nanotube interaction is studied by means of optical absorptio…
Fractional moment bounds and disorder relevance for pinning models
B. Derrida, G. Giacomin, H. Lacoin +1
We study the critical point of directed pinning/wetting models with quenched disorder. The distribution K(.) of the location of the first contact of the (free) polymer with the def…
Polaron relaxation in self-assembled quantum dots: Breakdown of the semi-classical model
T. Grange, R. Ferreira, G. Bastard
We calculate the lifetime of conduction band excited states in self-assembled quantum dots by taking into account LO-phonon-electron interaction and various anharmonic phonon coupl…
Optical properties of atomic Mott insulators: from slow light to dynamical Casimir effects
Iacopo Carusotto, Mauro Antezza, Francesco Bariani +2
We theoretically study the optical properties of a gas of ultracold, coherently dressed three-level atoms in a Mott insulator phase of an optical lattice. The vacuum state, the ban…
Barrier breakdown in a multiple quantum well structure
A. Gomez, V. Berger, N. Pere-Laperne +1
We explore a regime of unipolar electronic transport in a multiple quantum well structure with very large current discontinuities - up to five orders of magnitude. Magneto-transpor…
Quantum model of microcavity intersubband electroluminescent devices
Simone De Liberato, Cristiano Ciuti
We present a quantum theoretical analysis of the electroluminescence from an intersubband transition of a quantum well structure embedded in a planar microcavity. By using a cluste…