2006/01/31 by Gang Chen, Ronen Rapaport, L. N. Pffeifer +9 · 63 citations
Physics and Astronomy · #Biexciton #Boson #Chemical physics #Cold Atom Physics and Bose-Einstein Condensates #Condensed matter physics #Dipole #Exciton #Materials science #Microsecond #Physics #Physics of Superconductivity and Magnetism #Quantum mechanics #Quantum, superfluid, helium dynamics #Superfluidity #Trapping #cond-mat.mes-hall #cond-mat.str-el
paper · pdf · doi:10.1103/physrevb.74.045309
published in Physical Review B 74(4) (American Physical Society) · 11 pages 4 figures
arxiv created 2006/06/08 · openalex publication_date 2006/07/14 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
We present compelling experimental evidence for a successful electrostatic trapping of two-dimensional dipolar excitons that results in stable formation of a well-confined, high-density and spatially uniform dipolar exciton fluid. We show that, for at least half a microsecond, the exciton fluid sustains a density higher than the critical density for degeneracy if the exciton fluid temperature reaches the lattice temperature within that time. This method should allow for the study of strongly interacting bosons in two dimensions at low temperatures, and possibly lead towards the observation of quantum phase transitions of two-dimensional interacting excitons, such as superfluidity and crystallization.