Artificial trapping of a stable high-density dipolar exciton fluid
arXiv:cond-mat/0601719 · doi:10.1103/PhysRevB.74.045309
Abstract
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 2D interacting excitons, such as superfluidity and crystallization.
11 pages 4 figures
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- Finite-Temperature Phase Diagram of Hard-Core Bosons in Two Dimensions
- Long-Distance Diffusion of Excitons in Double Quantum Well Structures
- Spin degree of freedom in two dimensional exciton condensates
- Electrostatic traps for dipolar excitons
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Cited by in corpus (31)
- Analysis of the exciton-exciton interaction in semiconductor quantum wells
- Collective coherence in planar semiconductor microcavities
- Strong interactions between dipolar polaritons
- Localization-Delocalization Transition of Indirect Excitons in Lateral Electrostatic Lattices
- Particle correlations and evidence for dark state condensation in a cold dipolar exciton fluid
- Electrostatic Conveyer for Excitons
- Collection of indirect excitons in a diamond-shaped electrostatic trap
- Micropatterned Electrostatic Traps for Indirect Excitons in Coupled GaAs Quantum Wells
- Localization and interaction of indirect excitons in GaAs coupled quantum wells
- Two-Dimensional Electrostatic Lattices for Indirect Excitons
- Effects of strong correlations for 2D Bose-Einstein condensed dipolar excitons
- Remote Dipolar Interactions for Objective Density Calibration and Flow Control of Excitonic Fluids
- Transport of dipolar excitons in (Al,Ga)N/GaN quantum wells
- Exciton effective mass enhancement in coupled quantum wells in electric and magnetic fields
- Kinetics of indirect excitons in the optically-induced exciton trap
- Quantum Signature Blurred by Disorder in Indirect Exciton Gases
- Roton-maxon spectrum and instability for weakly interacting dipolar excitons in a semiconductor layer
- Attractive dipolar coupling between stacked exciton fluids
- Josephson oscillations between exciton condensates in electrostatic traps
- Theory of condensation of indirect excitons in a trap
- Superfluidity of two- dimensional excitons in flat and harmonic traps
- High-mobility indirect excitons in wide single quantum well
- Confocal shift interferometry of coherent emission from trapped dipolar excitons
- Photon storage with sub-nanosecond readout rise time in coupled quantum wells
- Analysis of Trapped Quantum Degenerate Dipolar Excitons
- Anisotropic superfluidity of two-dimensional excitons in a periodic potential
- Adiabatic preparation of a cold exciton condensate
- A Microscopic Lattice for Two-dimensional Dipolar Excitons
- Coherent exciton transport in semiconductors
- Observations of indirect exciton trapping in one- and two-dimensional magnetic lattices
- Condensation to a strongly correlated dark fluid of two dimensional dipolar excitons