100 citations · 197 across the 6 of their papers we have counts for
7 papers
Dynamical control over the confinement of spatially indirect excitons in electrostatic traps of GaAs coupled quantum wells
Mussie Beian, Suzanne Dang, Mathieu Alloing +6
We study spatially indirect excitons confined in a 10 m wide electrostatic trap of a GaAs double quantum well. We introduce a technique to control the amplitude of the electric…
Quantized Vortices and Four-Component Superfluidity of Semiconductor Excitons
Romain Anankine, Mussie Beian, Suzanne Dang +6
We study spatially indirect excitons of GaAs quantum wells, confined in a 10 microns electrostatic trap. Below a critical temperature of about 1 Kelvin, we detect macroscopic spati…
Spectroscopic Signatures for the Dark Bose-Einstein Condensation of Spatially Indirect Excitons
Mussie Beian, Mathieu Alloing, Romain Anankine +4
We study semiconductor excitons confined in an electrostatic trap of a GaAs bilayer heterostructure. We evidence that optically bright excitonic states are strongly depleted while…
Effects of fermion exchanges on the polarization of exciton condensates
M. Combescot, R. Combescot, M. Alloing +1
Exchange processes are responsible for the stability of elementary boson condensates with respect to their possible fragmentation. This remains true for composite bosons when singl…
Optical signatures of a fully dark exciton condensate
M. Combescot, R. Combescot, M. Alloing +1
We propose optical means to reveal the presence of a dark exciton condensate that does not yield any photoluminescence at all. We show that (i) the dark exciton density can be obta…
Evidence for a Bose-Einstein condensate of excitons
Mathieu Alloing, Mussie Beian, Maciej Lewenstein +6
The demonstration of Bose-Einstein condensation in atomic gases at micro-Kelvin temperatures is a striking landmark while its evidence for semiconductor excitons still is a long-aw…