Exciton supersolidity in hybrid Bose-Fermi systems

Abstract

We investigate the ground states of a Bose-Einstein condensate of indirect excitons coupled to an electron gas. We show that in a properly designed system, the crossing of a roton minimum into the negative energy domain can result in the appearance of the supersolid phase, characterized by periodicity in both real and reciprocal space. Accounting for the spin-dependent exchange interaction of excitons we obtain ferromagnetic supersolid domains. The Fourier spectra of excitations of weakly perturbed supersolids show pronounced diffraction maxima which may be detected experimentally.

4+ pages, 4 figures, new version with updated bare exciton-exciton interaction

References in corpus (7)

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• Analysis of the exciton-exciton interaction in semiconductor quantum wells
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Cited by in corpus (22)

• Exciton-exciton interaction in transition-metal dichalcogenide monolayers
• Superconductivity and other phase transitions in a hybrid Bose-Fermi mixture formed by a polariton condensate and an electron system in two dimensions
• Transition from a polaronic condensate to a degenerate Fermi gas of heteronuclear molecules
• Emerging supersolidity from a polariton condensate in a photonic crystal waveguide
• Realizing Topological Superconductivity in Tunable Bose-Fermi Mixtures with Transition Metal Dichalcogenide Heterostructures
• Interactions mediated by atoms, photons, electrons, and excitons
• Roton-maxon spectrum and instability for weakly interacting dipolar excitons in a semiconductor layer
• Magnetoplasmon Fano resonance in Bose-Fermi mixtures
• Unconventional Bloch-Grüneisen scattering in hybrid Bose-Fermi systems
• Bose-Einstein condensate-mediated superconductivity in graphene
• Attractive Coulomb interaction of 2D Rydberg excitons
• Light-induced topological superconductivity in transition metal dichalcogenide monolayers
• Theory of BCS-like bogolon-mediated superconductivity in transition metal dichalcogenides
• Coulomb drag of excitons in Bose-Fermi mixtures
• Bogolon-mediated electron scattering in graphene in hybrid Bose-Fermi systems
• Anisotropic superfluidity of two-dimensional excitons in a periodic potential
• Bogolon-mediated electron capture by impurities in hybrid Bose-Fermi systems
• Strong-coupling theory of condensate-mediated superconductivity in 2D materials
• Coupled system of electrons and exciton-polaritons: Screening, dynamical effects, and superconductivity
• Striped excitonic (super)solid in anisotropic semiconductors with screened exciton interactions
• Functional-renormalization-group approach to strongly coupled Bose-Fermi mixtures in two dimensions
• Quantum Dot in a Hybrid Structure with Dipolar Excitons