P
Pierre Lugan
Researcher at École Polytechnique Fédérale de Lausanne
Publications - 24
Citations - 2392
Pierre Lugan is an academic researcher from École Polytechnique Fédérale de Lausanne. The author has contributed to research in topics: Anderson localization & Bose–Einstein condensate. The author has an hindex of 12, co-authored 24 publications receiving 2159 citations. Previous affiliations of Pierre Lugan include Centre national de la recherche scientifique.
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Journal ArticleDOI
Direct observation of Anderson localization of matter waves in a controlled disorder
Juliette Billy,Vincent Josse,Zhanchun Zuo,Alain Bernard,Ben Hambrecht,Pierre Lugan,David Clément,Laurent Sanchez-Palencia,Philippe Bouyer,Alain Aspect +9 more
TL;DR: This work directly image the atomic density profiles as a function of time, and finds that weak disorder can stop the expansion and lead to the formation of a stationary, exponentially localized wavefunction—a direct signature of Anderson localization.
Journal ArticleDOI
Anderson localization of expanding Bose-Einstein condensates in random potentials
Laurent Sanchez-Palencia,David Clément,Pierre Lugan,Philippe Bouyer,G. V. Shlyapnikov,Alain Aspect +5 more
TL;DR: It is shown that the expansion of an initially confined interacting 1D Bose-Einstein condensate can exhibit Anderson localization in a weak random potential with correlation length sigma(R) and the localization is exponential.
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Ultracold Bose Gases in 1D Disorder: From Lifshits Glass to Bose-Einstein Condensate
Pierre Lugan,David Clément,Philippe Bouyer,Alain Aspect,Maciej Lewenstein,Laurent Sanchez-Palencia +5 more
TL;DR: In this article, an ultracold Bose gas in the presence of 1D disorder was studied for repulsive interatomic interactions varying from zero to the Thomas-Fermi regime.
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Engineering the spatial confinement of exciton-polaritons in semiconductors
R. Idrissi Kaitouni,O. El Daïf,A. Baas,Maxime Richard,Taofiq K. Paraïso,Pierre Lugan,Thierry Guillet,François Morier-Genoud,Jean-Daniel Ganière,Jl Staehli,Vincenzo Savona,Benoit Deveaud +11 more
TL;DR: In this paper, the authors demonstrate three-dimensional spatial confinement of exciton-polaritons in a semiconductor microcavity through lateral trapping of their photon component, resulting in a shallow potential well that allows the simultaneous existence of extended states above the barrier.
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One-Dimensional Anderson Localization in Certain Correlated Random Potentials
Pierre Lugan,Alain Aspect,Laurent Sanchez-Palencia,Dominique Delande,Benoît Grémaud,Cord A. Müller,Christian Miniatura +6 more
TL;DR: In this paper, Anderson localization of ultracold atoms in weak, one-dimensional speckle potentials, using perturbation theory beyond Born approximation, is studied, showing the existence of a series of sharp crossovers (effective mobility edges) between energy regions where localization lengths differ by orders of magnitude.