Fluctuations and quantum self-bound droplets in a dipolar Bose-Bose mixture

Abstract

We systematically investigate the properties of three-dimensional dipolar binary Bose mixture at low temperatures. A set of coupled self-consistent equations of motion are derived for the two condensates. In the homogeneous case, useful analytical formulas for the condensate depletion, the anomalous density, the ground-state energy, and the equation of state are obtained. The theory is extended to the inhomogeneous case and the importance of the inhomogeneity is highlighted. Our results open up a new avenue for studying dipolar mixture droplets. Impacts of the dipole-dipole interaction on the stability, density profiles, and the size of the self-bound droplet are deeply discussed. The finite-temperature behavior of such a state is also examined.

11 pages, 6 figures

References in corpus (14)

• Quantum liquid droplets in a mixture of Bose-Einstein condensates
• Self-bound quantum droplets in atomic mixtures
• Self-bound droplets of a dilute magnetic quantum liquid
• Quantum-fluctuation-driven crossover from a dilute Bose-Einstein condensate to a macro-droplet in a dipolar quantum fluid
• Bright soliton to quantum droplet transition in a mixture of Bose-Einstein condensates
• Bogoliubov modes of a dipolar condensate in a cylindrical trap
• A two-species five-beam magneto-optical trap for highly magnetic Er and Dy atoms
• Quantum and thermal fluctuations in two-component Bose gases
• Dipolar Bose-Einstein condensates at Finite temperature
• Self-localized state and solitons in a Bose-Einstein-condensate-impurity mixture at finite temperature
• Half-Quantum Vortex Molecules in a Binary Dipolar Bose Gas
• Phase separation of a two-component dipolar Bose-Einstein condensate in the quasi-one-dimensional and quasi-two-dimensional regime
• Beyond mean-field properties of binary dipolar Bose mixtures at low temperatures
• Dipolar Bose gas with three-body interactions at finite temperature

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• Quantum droplets of dipolar mixtures
• Rotating binary Bose-Einstein condensates and vortex clusters in quantum droplets
• Two-dimensional anisotropic vortex quantum droplets in dipolar Bose-Einstein condensates
• Strongly anisotropic vortices in dipolar quantum droplets
• Quantum self-bound droplets in Bose-Bose mixtures: Effects of higher-order quantum and thermal fluctuations
• An impurity in a heteronuclear two-component Bose mixture
• Thermal destabilization of self-bound ultradilute quantum droplets
• Many-body and temperature effects in two-dimensional quantum droplets in Bose-Bose mixtures
• Vortex-ring quantum droplets in a radially-periodic potential
• Quantum correlations in dipolar droplets: Time-dependent Hartree-Fock-Bogoliubov theory
• Breathing modes of repulsive polarons in Bose-Bose mixtures
• Quantum liquid droplets in Bose mixtures with weak disorder
• The Effective Single-mode model of a Binary Boson Mixture in the Quantum Droplet Region
• Bose-Bose mixtures in a weak-disorder potential: Fluctuations and superfluidity
• Two-dimensional quantum droplets in binary quadrupolar condensates
• Moving binary Bose-Einstein condensates in a weak random potential
• Interwires polar soliton molecules in a biwire system
• Weakly interacting Bose gases with generalized uncertainty principle: Effects of quantum gravity
• Limitation of the Lee-Huang-Yang interaction in forming a self-bound state in Bose-Einstein condensates
• A charged Coulomb Bose gas with dipole-dipole interactions
• Effects of quantum fluctuations on the dynamics of dipolar Bose polarons
• Quantum information flow in impurity qubits interacting with Bose-Bose mixtures
• Thermal behavior of Bose-Einstein condensates of polar molecules
• Moving Bose mixtures with dipole-dipole interactions
• Superfluidity and coherence in uniform dipolar binary Bose mixtures
• Spatially-periodic states in a strongly dipolar ${}^{164}$Dy-${}^{162}$Dy mixture
• Bose-Bose gases with nonuniversal corrections to the interactions: a droplet phase
• Nonuniversal equation of state for Rabi-coupled bosonic gases: a droplet phase
• Modeling dark matter as self-bound quantum liquid droplets