Zobrazeno 1 - 10
of 88
pro vyhledávání: '"Dubin, François"'
In condensed-matter physics, supersolids refer to many-body quantum states breaking translational symmetry while exhibiting off-diagonal long-range order. This combination is debated for commensurate crystals, however it is accessible in lattice pote
Externí odkaz:
http://arxiv.org/abs/2410.17162
We study dipolar excitons confined at 330 mK in a square electrostatic lattice of a GaAs double quantum well. In the dipolar occupation blockade regime, at 3/2 filling, we evidence that excitons form a face-centred superlattice quantum solid. This ph
Externí odkaz:
http://arxiv.org/abs/2401.04639
Strongly correlated quantum particles in lattice potentials are the building blocks for a large variety of quantum insulators, for instance Mott phases and density waves breaking the lattice symmetry. Such collective states are accessible to bosonic
Externí odkaz:
http://arxiv.org/abs/2211.01820
Publikováno v:
Europhysics Letters (2022)
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:
http://arxiv.org/abs/2202.10652
In condensed-matter physics, electronic Mott insulators have triggered considerable research due to their intricate relation with high-temperature superconductors. However, unlike atomic systems for which Mott phases were recently shown for both boso
Externí odkaz:
http://arxiv.org/abs/2102.11637
Autor:
Lagoin, Camille, Dubin, Francois
Publikováno v:
Phys. Rev. B 103, 041406 (2021)
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
Externí odkaz:
http://arxiv.org/abs/2009.12943
Autor:
Lagoin, Camille, Suffit, Stephan, Bernard, Mathieu, Vabre, Maxime, West, Kenneth, Baldwin, Kirk, Pfeiffer, Loren, Dubin, Francois
Publikováno v:
Phys. Rev. B 102, 245428 (2020)
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:
http://arxiv.org/abs/2009.07562
Autor:
Lagoin, Camille, Suffit, Stephan, West, Kenneth, Baldwin, Kirk, Pfeiffer, Loren, Holzmann, Markus, Dubin, Francois
Publikováno v:
Phys. Rev. Lett. 126, 067404 (2021)
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:
http://arxiv.org/abs/2009.07566
Autor:
Dang, Suzanne, Anankine, Romain, Gomez, Carmen, Lemaître, Aristide, Holzmann, Markus, Dubin, François
Publikováno v:
Phys. Rev. Lett. 122, 117402 (2019)
We study ultra-cold dipolar excitons confined in a 10$\mu$m trap of a double GaAs quantum well. Based on the local density approximation, we unveil for the first time the equation of state of excitons at pure thermodynamic equilibrium. In this regime
Externí odkaz:
http://arxiv.org/abs/1805.07982
Autor:
Beian, Mussie, Dang, Suzanne, Alloing, Mathieu, Anankine, Romain, Cambril, Edmond, Gomez, Carmen, Osmond, Johann, Lemaitre, Aristide, Dubin, Francois
We study spatially indirect excitons confined in a 10 $\mu$m wide electrostatic trap of a GaAs double quantum well. We introduce a technique to control the amplitude of the electric field interacting with the excitons electric dipole, with nanosecond
Externí odkaz:
http://arxiv.org/abs/1710.10878