Quantum Bose-Fermi droplets

Abstract

We study the stability of a zero temperature mixture of attractively interacting degenerate bosons and spin-polarized fermions in the absence of confinement. We demonstrate that higher order corrections to the standard mean-field energy can lead to a formation of Bose-Fermi liquid droplets -- self-bound systems in three-dimensional space. The stability analysis of the homogeneous case is supported by numerical simulations of finite systems by explicit inclusion of surface effects. We discuss the experimental feasibility of formation of quantum droplets and indicate the main obstacle -- inelastic three-body collisions.

Resubmission to SciPost

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Cited by in corpus (36)

• New states of matter with fine-tuned interactions: quantum droplets and dipolar supersolids
• Collective Excitations of a One-Dimensional Quantum Droplet
• Quantum droplets of dipolar mixtures
• Self-bound Bose-Fermi liquids in lower dimensions
• Solitary waves in a quantum droplet-bearing system
• Correlated dynamics of collective droplet excitations in a one-dimensional harmonic trap
• Structured hetero-symmetric quantum droplets
• Dynamics of quantum soliton in Lee-Huang-Yang spin-orbit coupled Bose-Einstein condensates
• Borromean droplet in three-component ultracold Bose gases
• Sound propagation in a Bose-Fermi mixture: from weak to strong interactions
• Droplet under confinement: Competition and coexistence with soliton bound state
• Quantum droplet in a mixture of Bose-Fermi superfluids
• Revisiting a stability problem of two-component droplets
• Breathing Mode of a Bose-Einstein Condensate Immersed in a Fermi Sea
• Quantum droplets in three-dimensional Bose-Einstein condensates
• Effects of quantum fluctuations on macroscopic quantum tunneling and self-trapping of BEC in a double well trap
• Zero-energy modes of two-component Bose-Bose droplets
• Particle imbalanced weakly interacting quantum droplets in one-dimension
• Phases and dynamics of quantum droplets in the crossover to two-dimensions
• Phases and dynamics of few fermionic impurities immersed in two-dimensional boson droplets
• Effect of beyond mean-field interaction on the structure and dynamics of the one-dimensional quantum droplet
• Quantum-Fluctuation-Driven Dynamics of Droplet Splashing, Recoiling and Deposition in Ultracold Binary Bose Gases
• Supersolid behavior in one-dimensional self-trapped Bose-Einstein condensate
• Bistability of Bose-Fermi mixtures
• Rotating mixed ${}^3$He-${}^4$He nanodroplets
• Limitation of the Lee-Huang-Yang interaction in forming a self-bound state in Bose-Einstein condensates
• Quantum soliton-trains of strongly correlated impurities in Bose-Einstein condensates
• Second root of dilute Bose-Fermi mixtures
• Modelling quantum aspects of disruption of a white dwarf star by a black hole
• An experimental platform for studying the heteronuclear Efimov effect with an ultracold mixture of ${}^6$Li and ${}^{133}$Cs atoms
• One-dimensional asymmetrically interacting quantum droplets in Bose-Bose mixtures
• Interaction imbalanced spin-orbit coupled quantum droplets
• Supersolidity of dipolar Bose-Einstein condensates induced by coupling to fermions
• Studying the radiation of a white dwarf star falling onto a black hole
• Dynamic formation of supersolid phase in a mixture of ultracold bosonic and fermionic atoms
• Competitive algorithms for calculating the ground state properties of Bose-Fermi mixtures