Zobrazeno 1 - 10
of 59
pro vyhledávání: '"François Dubin"'
Autor:
Suzanne Dang, Marta Zamorano, Stephan Suffit, Kenneth West, Kirk Baldwin, Loren Pfeiffer, Markus Holzmann, François Dubin
Publikováno v:
Physical Review Research, Vol 2, Iss 3, p 032013 (2020)
We study dipolar excitons confined in a flat trap of a GaAs bilayer heterostructure. By quantifying density and density fluctuations at sub-Kelvin temperatures, we unveil the excitons' universal equation of state. This allows us to infer thermodynami
Externí odkaz:
https://doaj.org/article/f2e60f603ee64edeb5d893ebb0faecd5
Autor:
Romain Anankine, Suzanne Dang, Mussie Beian, Edmond Cambril, Carmen Gomez Carbonell, Aristide Lemaître, François Dubin
Publikováno v:
New Journal of Physics, Vol 20, Iss 7, p 073049 (2018)
We study the time coherence of the photoluminescence radiated by spatially indirect excitons confined in a 10 μ m electrostatic trap. Above a critical temperature of about 1 K, we show that the photoluminescence is homogeneously broadened in the dil
Externí odkaz:
https://doaj.org/article/e98e22fed3d44c52af062509701ca330
Publikováno v:
Nature Physics. 18:149-153
Publikováno v:
Nature materials.
Strongly correlated quantum particles in lattice potentials are the building blocks for a wide variety of quantum insulators-for instance, Mott phases and density waves breaking lattice symmetry
Quantum fluctuations of the electromagnetic field are known to produce the atomic Lamb shift. We here reveal their iconic signature in semiconductor physics, through the blue-shift they produce to optically bright excitons, thus lifting the energy of
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::192c5687d1c8ec103725f958f334d5c6
Autor:
François Dubin, Maria Vladimirova, François Chiaruttini, Chahine Abbas, Denis Scalbert, Aristide Lemaître, Steeve Cronenberger
Publikováno v:
Superlattices and Microstructures
Superlattices and Microstructures, Elsevier, 2018, 122, pp.643. ⟨10.1016/j.spmi.2018.06.015⟩
Superlattices and Microstructures, Elsevier, 2018, 122, pp.643. ⟨10.1016/j.spmi.2018.06.015⟩
Density and spin dynamics of indirect excitons in asymmetric GaAs/AlGaAs coupled quantum wells is studied by time-resolved photoluminescence. Under electric bias applied in the growth direction the lifetime of indirect excitons formed by an electron
Autor:
Camille Lagoin, François Dubin
Publikováno v:
Physical Review B. 103
Interlayer excitons confined in bilayer heterostructures of transition metal dichalcogenides (TMDs) offer a promising route to implement two-dimensional dipolar superfluids. Here, we study the experimental conditions necessary for the realisation of
Autor:
Loren Pfeiffer, François Dubin, Mathieu Bernard, Kenneth D. West, Camille Lagoin, Kirk Baldwin, Stéphan Suffit, Maxime Vabre
Publikováno v:
Physical Review B
Physical Review B, American Physical Society, 2020, ⟨10.1103/PhysRevB.102.245428⟩
Physical Review B, American Physical Society, 2020, ⟨10.1103/PhysRevB.102.245428⟩
We report a two-dimensional artificial lattice for dipolar excitons confined in a GaAs double quantum well. Exploring the regime of large fillings per lattice site, we verify that the lattice depth competes with the magnitude of excitons repulsive di
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::3fb435cecdc7f23a13453e43b524d396
https://hal.archives-ouvertes.fr/hal-03043496
https://hal.archives-ouvertes.fr/hal-03043496
Autor:
Kirk Baldwin, Loren Pfeiffer, Kenneth D. West, Camille Lagoin, François Dubin, Markus Holzmann, Stéphan Suffit
Publikováno v:
Physical Review Letters
Physical Review Letters, American Physical Society, 2021, 126 (6), pp.067404. ⟨10.1103/PhysRevLett.126.067404⟩
Physical Review Letters, American Physical Society, 2021, 126 (6), pp.067404. ⟨10.1103/PhysRevLett.126.067404⟩
We study two-dimensional excitons confined in a lattice potential, for high fillings of the lattice sites. We show that a quasi-condensate is possibly formed for small values of the lattice depth, but for larger ones the critical phase-space density
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d7fb5dbc06a6ab6922a786aa49f0a45f
https://hal.archives-ouvertes.fr/hal-02994353
https://hal.archives-ouvertes.fr/hal-02994353
Autor:
François Dubin, Suzanne Dang, Kirk Baldwin, Stéphan Suffit, Marta Zamorano, Kenneth D. West, Loren Pfeiffer, Markus Holzmann
Publikováno v:
Physical Review Research
Physical Review Research, American Physical Society, 2020, 2 (3), ⟨10.1103/PhysRevResearch.2.032013⟩
Physical Review Research, American Physical Society, 2020, 2 (3), ⟨10.1103/PhysRevResearch.2.032013⟩
International audience; Emergence of algebraic quasi-long-range order is a key feature of superfluid phase transitions at two dimensions. For this reduced dimensionality interactions prevent Bose-Einstein condensation with true long range order, at a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::06469de5bdb022cf1967a32aa8ee75b5