Autolocalization in a dipolar exciton system
arXiv:1503.04361 · doi:10.1103/PhysRevB.92.041117
Abstract
We develop the autolocalization hypothesis suggested recently in [Andreev, Phys. Rev. Lett. 110, 146401 (2013)] to explain the formation of the macroscopically ordered exciton state (MOES) in semiconductor quantum wells [L. V. Butov et al., Nature (London) 418, 751 (2002)]. We argue that the onset of a periodical localizing potential having a macroscopic spatial period is possible in the systems where in addition to long-range dipolar repulsion the excitons exhibit resonant pairing at short distances. Our theory suggests, that the central incoherent part of each condensate in the MOES may represent a novel quantum molecular phase, which was predicted and discussed theoretically several years ago in the context of resonant Bose superfluids.
5 pages, 2 figures
References in corpus (11)
- Resonantly-paired fermionic superfluids
- Analysis of the exciton-exciton interaction in semiconductor quantum wells
- Evidence for a Bose-Einstein condensate of excitons
- Superfluidity and phase transitions in a resonant Bose gas
- Two-dimensional dipolar Bose gas with the roton-maxon excitation spectrum
- Biexcitons in two-dimensional systems with spatially separated electrons and holes
- Two-dimensional Bose gas of tilted dipoles: roton instability and condensate depletion
- Pattern formation of indirect excitons in coupled quantum wells
- Thermodynamic model of the macroscopically ordered exciton state
- Fluctuation and Commensurability Effect of Exciton Density Wave
- Scale invariance and universality in a cold gas of indirect excitons
Cited by in corpus (11)
- Effective interactions in a quantum Bose-Bose mixture
- Fragmented-condensate solid of dipolar excitons
- Resonant Pairing of Excitons in Semiconductor Heterostructures
- Anisotropic superfluidity of two-dimensional excitons in a periodic potential
- Dipolar polaritons squeezed at unitarity
- Pairing of electro-magnetic bosons under spin-orbit coupling
- Spin-orbit coupled depairing of a dipolar biexciton superfluid
- Magnetoroton in a two-dimensional Bose-Bose mixture
- Self-localization of magnons and magnetoroton in a binary Bose-Einstein condensate
- Striped excitonic (super)solid in anisotropic semiconductors with screened exciton interactions
- Hanle model of a spin-orbit coupled Bose-Einstein condensate of excitons in semiconductor quantum wells