Quantum Mechanical Stabilization of a Collapsing Bose-Bose Mixture

Abstract

According to the mean-field theory a condensed Bose-Bose mixture collapses when the interspecies attraction becomes stronger than the geometrical average of the intraspecies repulsions, $g_{12}^2>g_{11}{g}_{22}$. We show that instead of collapsing such a mixture gets into a dilute liquid-like droplet state stabilized by quantum fluctuations thus providing a direct manifestation of beyond mean-field effects. We study various properties of the droplet and find, in particular, that in a wide range of parameters its excitation spectrum lies entirely above the particle emission threshold. The droplet thus automatically evaporates itself to zero temperature, the property potentially interesting by itself and from the viewpoint of sympathetic cooling of other systems.

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• Collective Excitation of Quantum Droplet with Different Ranges of the Interaction of Pöschl-Teller Potential
• Surface excitation of Rydberg dressed quantum droplet of Bose-Einstein Condensates
• Nonuniversal equation of state for Rabi-coupled bosonic gases: a droplet phase
• Yrast states of quantum droplets confined in a ring potential
• Quantum Triticality of Bosonic Atomic-Molecular Mixtures with Feshbach Coupling
• Phase diagram and elementary excitations of strongly interacting droplets with non-local interactions
• Resonantly enhanced superconductivity mediated by spinor condensates
• Josephson oscillations of chirality and identity in two-dimensional solitons in spin-orbit-coupled condensates
• Quantum droplets in two-dimensional optical lattices
• Two-dimensional symbiotic solitons and quantum droplets in a quasi-one-dimensional optical lattice
• Multicomponent one-dimensional quantum droplets across the mean-field stability regime
• Fractional vorticity, Bogomol'nyi-Prasad-Sommerfield systems and complex structures for the (generalized) spinor Gross-Pitaevskii equations
• Bose-Bose gases with nonuniversal corrections to the interactions: a droplet phase
• New Frontiers in Multidimensional Self-Trapping of Nonlinear Fields and Matter
• Quantum Degenerate Mixtures of Cs and Yb
• Self-evaporation dynamics of quantum droplets in a 41K-87Rb mixture
• Cavity-induced quantum droplets
• Quantum Monte Carlo study of few- and many-body Bose systems in one and two dimensions
• Engineering quantum droplet formation by cavity-induced long-range interactions
• Static and dynamical properties of quadrupolar quantum droplets in quasi-2D condensates
• Dynamics of Quantum Droplets in a Quasi-one-dimensional Framework: An Analytical Approach
• Diminished quantum depletion and correlated droplets in one-dimensional dipolar Bose gas
• Nonlinear modes in spatially confined spin-orbit-coupled Bose-Einstein condensates with repulsive nonlinearity
• Thermal liquid-gas phase transition in a quasi-one-dimensional dipolar Fermi gas
• Symmetry breaking, Josephson oscillation and self-trapping in a self-bound three-dimensional quantum ball
• Fragmentation Temperature of 1D and 3D Quantum Droplets in a BEC Mixture
• Maxwell Fronts in the Discrete Nonlinear Schrödinger Equations with Competing Nonlinearities
• Slowly rotating condensate dark stars beyond the mean-field approximation
• Bosonic quantum Hall droplets in rapidly rotating two-dimensional Bose-Einstein condensates
• Quasiparticle spectra of mixtures of dipolar and non-dipolar condensates at zero and finite temperatures
• Modeling dark matter as self-bound quantum liquid droplets
• Preparation of quasi-two-dimensional Bose mixture of ultracold ${}^{23}$Na and ${}^{87}$Rb atoms
• Scaling Laws Governing the Collapse of a Bose-Einstein Condensate
• Phases and dynamics of an impurity immersed in one-dimensional quantum droplets
• Interacting Bose-condensed gases
• Experimental study of matter-wave four-wave mixing in ${}^{39}$K Bose-Einstein condensates with tunable interaction
• Dimensional crossover of bound complexes in a two-species Bose-Hubbard lattice: Correlations and dynamics
• Rotational dynamics induced by low energy binary collisions of quantum droplets
• Generation of squeezed optical states via stored classical pulses in a Bose gas
• Dynamical signatures of superfluidity and shear rigidity in different phases of a dipolar Bose-Einstein condensate
• Ab-initio Quantum Monte Carlo study of ultracold atomic mixtures
• Effect of Rashba spin-orbit and Rabi couplings on the excitation spectrum of binary Bose-Einstein condensates
• Dilute quantum liquid in a K-Rb Bose mixture
• Ultradilute quantum liquid of dipolar atoms in a bilayer
• Beyond-mean-field effects in Rabi-coupled two-component Bose-Einstein condensate
• Fragmentation of identical and distinguishable bosons' pairs and natural geminals of a trapped bosonic mixture
• Droplets of Bosons at a Narrow Resonance
• Modulational instability and quantum droplets in a two-dimensional Bose-Einstein condensate
• Vortices in the Many-Body Excited States of Interacting Bosons in Two Dimension