Exploració per autor "Alloing, Mathieu"
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Effects of Fermion Exchange on the Polarization of Exciton Condensates
Combescot, Monique; Combescot, Roland; Alloing, Mathieu; Dubin, François (APS Physics, 2015-03-04)
Article
Accés obertExchange interaction is responsible for the stability of elementary boson condensates with respect to momentum fragmentation. This remains true for composite bosons when single fermion exchanges are included but spin ... -
Experimental evidence for the quantum condensation of ultracold dipolar excitons
Alloing, Mathieu (Universitat Politècnica de Catalunya, 2014-05-28)
Tesi
Accés obertIn this thesis, we report experimental evidence of a "gray" condensate of excitons, as predicted theoretically by M. Combescot et al. Most importantly, the condensate is characterized by the macroscopic population of dark ... -
Long-lived spin coherence of indirect excitons in GaAs coupled quantum wells
Beian, Mussie; Alloing, Mathieu; Cambril, Edmond; Gomez Carbonell, Carmen; Osmond, Johann; Lemaître, Aristide; Dubin, François (IOP, 2015-04-30)
Article
Accés obertWe study spatially indirect excitons confined in a symmetric GaAs double quantum well. We show that the spin polarisation of very dilute gases can be optically imprinted, in both pure and superposition states. In the regime ...