Stationary waves in a superfluid gas of electron-hole pairs in bilayers
arXiv:2105.09131 · doi:10.1103/PhysRevB.103.205419
Abstract
Stationary waves in the condensate of electron-hole pairs in the bilayer system are studied. The system demonstrates the transition from a uniform (superfluid) to a nonuniform (supersolid) state. The precursor of this transition is the appearance of the roton-type minimum in the collective mode spectrum. Stationary waves occur in the flow of the condensate past an obstacle. It is shown that the roton-type minimum manifests itself in a rather complicated stationary wave pattern with several families of crests which cross one another. It is found that the stationary wave pattern is essentially modified under variation in the density of the condensate and under variation in the flow velocity. It is shown that the pattern is formed in the main part by shortwave modes in the case of a point obstacle. The contribution of longwave modes is clearly visible in the case of a weak extended obstacle, where the stationary wave pattern resembles the ship wave pattern.
References in corpus (50)
- Quantum fluids of light
- Observation of Electron-Hole Puddles in Graphene Using a Scanning Single Electron Transistor
- Observation of Superfluidity of Polaritons in Semiconductor Microcavities
- Spontaneous Inter-layer Coherence in Double-Layer Quantum-Hall Systems I: Charged Vortices and Kosterlitz-Thouless Phase Transitions
- Evidence of high-temperature exciton condensation in 2D atomic double layers
- Observation of a dipolar quantum gas with metastable supersolid properties
- Transient supersolid properties in an array of dipolar quantum droplets
- Long-lived and transient supersolid behaviors in dipolar quantum gases
- Room-temperature superfluidity in a polariton condensate
- Room-Temperature Superfluidity in Graphene Bilayers
- Counterflow measurements in strongly correlated GaAs hole bilayers: evidence for electron-hole pairing
- Vanishing Hall Resistance at High Magnetic Field in a Double Layer Two-Dimensional Electron System
- Exciton Condensation and Perfect Coulomb Drag
- High Temperature Superfluidity in Double Bilayer Graphene
- Coulomb Drag in the Exciton Regime in Electron-Hole Bilayers
- Bogoliubov-Cerenkov radiation in a Bose-Einstein condensate flowing against an obstacle
- Strongly enhanced tunneling at total charge neutrality in double bilayer graphene-WSe heterostructures
- Theory of Two-Dimensional Spatially Indirect Equilibrium Exciton Condensates
- Anomalous Coulomb drag in electron-hole bilayers
- Activated Transport in the individual Layers that form the =1 Exciton Condensate
- Stable dilute supersolid of two-dimensional dipolar bosons
- Exciton mapping at subwavelength scales in two-dimensional materials
- High-temperature superfuidity of the two-component Bose gas in a TMDC bilayer
- Interlayer excitons in transition metal dichalcogenide heterostructures
- Interaction-Enhanced Coherence Between Two-Dimensional Dirac Layers
- Exciton condensate in bilayer transition metal dichalcogenides: strong coupling regime
- Wigner supersolid of excitons in electron-hole bilayers
- Towards superfluidity of dipolar excitons in a TMDC double layer
- Linear wave dynamics explains observations attributed to dark-solitons in a polariton quantum fluid
- Superfluidity of Dipolar Excitons in a Black Phosphorene Double Layer
- Wave patterns generated by a supersonic moving body in a binary Bose-Einstein condensate
- Linear "ship waves" generated in stationary flow of a Bose-Einstein condensate past an obstacle
- Electrical Reservoirs for Bilayer Excitons
- Superflow of resonantly driven polaritons against a defect
- Interference effects in the two-dimensional scattering of microcavity polaritons by an obstacle: phase dislocations and resonances
- Critical Currents of Ideal Quantum Hall Superfluids
- Experimental conditions for observation of electron-hole superfluidity in GaAs heterostructures
- Multicomponent screening and superfluidity in gapped electron-hole double bilayer graphene with realistic bands
- Quasiequilibrium supersolid phase of a two-dimensional dipolar crystal
- Tunneling and Fluctuating Electron-Hole Cooper Pairs in Double Bilayer Graphene
- Stationary wave patterns generated by an impurity moving with supersonic velocity through a Bose-Einstein condensate
- Quasi-condensation of bilayer excitons in a periodic potential
- Superconductivity of electron-hole pairs in a bilayer graphene system in a quantizing magnetic field
- Stationary waves in a supersonic flow of a two-component Bose gas
- Critical currents and giant non-dissipative drag for superfluid electron-hole pairs in quantum Hall multilayers
- Superfluidity of a rarefied gas of electron-hole pairs in a bilayer system
- Stationary waves in a superfluid exciton gas in quantum Hall bilayers
- Electromagnetic properties of a double layer graphene system with electron-hole pairing
- Transition to a supersolid phase in a two-dimensional dilute gas of electron-hole pairs
- Anderson-Bogoliubov and Carlson-Goldman modes in counterflow superconductors: Case study of a double monolayer graphene