Supersolidity in electron-hole bilayers with a large density imbalance

Abstract

We consider an electron-hole bilayer in the limit of extreme density imbalance, where we have a single particle in one layer interacting attractively with a Fermi liquid in the other parallel layer. Using an appropriate variational wave function for the dressed exciton, we provide strong evidence for the existence of the Fulde-Ferrell-Larkin-Ovchinnikov (FFLO) phase in electron-hole bilayers with a large density imbalance. Furthermore, within this unusual limit of FFLO, we find that a dilute gas of minority particles forms excitons that condense into a two-dimensional "supersolid".

6 pages, 2 figures

References in corpus (21)

• Pairing and Phase Separation in a Polarized Fermi Gas
• Fermionic Superfluidity with Imbalanced Spin Populations and the Quantum Phase Transition to the Normal State
• Correlation energy and spin polarization in the 2D electron gas
• BEC-BCS crossover, phase transitions and phase separation in polarized resonantly-paired superfluids
• Finite temperature phase diagram of a polarised Fermi condensate
• Coulomb Drag in the Exciton Regime in Electron-Hole Bilayers
• Quasi-one-dimensional polarized Fermi superfluids
• Anomalous Coulomb drag in electron-hole bilayers
• Polaron-molecule transitions in a two-dimensional Fermi gas
• Berezinskii-Kosterlitz-Thouless transition in two-dimensional dipole systems
• Analytical theory of the dressed bound state in highly polarized Fermi gases
• Effects of density imbalance on the BCS-BEC crossover in semiconductor electron-hole bilayers
• Exciton-exciton interaction and biexciton formation in bilayer systems
• Angular distribution of photoluminescence as a probe of Bose Condensation of trapped excitons
• Kinetics of Exciton Emission Patterns and Carrier Transport
• Crystallization in mass-asymmetric electron-hole bilayers
• Stability of Sarma phases in density imbalanced electron-hole bilayer systems
• Layer interdependence of transport in an undoped electron-hole bilayer
• Quantum condensation in electron-hole bilayers with density imbalance
• Exciton Condensate Modulation in Electron-Hole Bilayers: A Real-Space Visualization
• Two dimensional electron gas near full polarization

Cited by in corpus (17)

• Electron-exciton interactions in the exciton-polaron problem
• Excitons and biexcitons in symmetric electron-hole bilayers
• Excitonic topological order in imbalanced electron-hole bilayers
• Electrically Controlled Two-Dimensional Electron-Hole Fluids
• Exciton supersolidity in hybrid Bose-Fermi systems
• High-energy side-peak emission of exciton-polariton condensates in high density regime
• Exciton condensation in strongly correlated electron bilayers
• Extremely imbalanced two-dimensional electron-hole-photon systems
• Rotons in Optical Excitation Spectra of Monolayer Semiconductors
• Eliashberg theory for dynamical screening in bilayer exciton condensation
• Structure of exciton condensates in imbalanced electron-hole bilayers
• Spin-imbalanced ultracold Fermi gases in a two-dimensional array of tubes
• Crescent states in charge-imbalanced polariton condensates
• Transition to a supersolid phase in a two-dimensional dilute gas of electron-hole pairs
• Electron-hole pairing of Fermi-arc surface states in a Weyl-semimetal bilayer
• Striped excitonic (super)solid in anisotropic semiconductors with screened exciton interactions
• Multiple polaron quasiparticles with dipolar fermions in a bilayer geometry