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Ground and excited states of coupled exciton liquids in electron-hole quadrilayers
- Source :
- Physical Review B, vol 104, iss 19
- Publication Year :
- 2022
- Publisher :
- arXiv, 2022.
-
Abstract
- Interlayer excitons are bound states of electrons and holes confined in separate two-dimensional layers. Due to their repulsive dipolar interaction, interlayer excitons can form a correlated liquid. If another electron-hole bilayer is present, excitons from different bilayers can exhibit mutual attraction. We study such a quadrilayer system by a hypernetted chain formalism. We compute ground state energies, pair correlation functions, and collective mode velocities as functions of the exciton densities. We estimate the critical density for the transition to a paired biexciton phase. For a strongly unbalanced (unequal density) system, the excitons in the more dilute bilayer behave as polarons. We compute energies and effective masses of such exciton-polarons.
- Subjects :
- Physics
Condensed Matter::Quantum Gases
Condensed Matter - Mesoscale and Nanoscale Physics
Condensed Matter::Other
Exciton
Fluids & Plasmas
FOS: Physical sciences
Electron hole
Condensed Matter::Mesoscopic Systems and Quantum Hall Effect
Condensed Matter::Materials Science
Engineering
Excited state
Physical Sciences
Chemical Sciences
Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
Atomic physics
Subjects
Details
- Database :
- OpenAIRE
- Journal :
- Physical Review B, vol 104, iss 19
- Accession number :
- edsair.doi.dedup.....f49584bffc37f5c254fe9d8212414a0d
- Full Text :
- https://doi.org/10.48550/arxiv.2203.04504