Dilute dipolar quantum droplets beyond the extended Gross-Pitaevskii equation

Abstract

Dipolar quantum droplets are exotic quantum objects that are self-bound due to the subtle balance of attraction, repulsion and quantum correlations. Here we present a systematic study of the critical atom number of these self-bound droplets, comparing the experimental results with extended mean-field Gross-Pitaevskii equation (eGPE) and quantum Monte-Carlo simulations of the dilute system. The respective theoretical predictions differ, questioning the validity of the current theoretical state-of-the-art description of quantum droplets within the eGPE framework and indicating that correlations in the system are significant. Furthermore, we show that our system can serve as a sensitive testing ground for many-body theories in the near future.

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Cited by in corpus (76)

• Dipolar physics: A review of experiments with magnetic quantum gases
• Supersolid symmetry breaking from compressional oscillations in a dipolar quantum gas
• The low-energy Goldstone mode in a trapped dipolar supersolid
• New states of matter with fine-tuned interactions: quantum droplets and dipolar supersolids
• Evidence of superfluidity in a dipolar supersolid from non-classical rotational inertia
• Pattern Formation in Quantum Ferrofluids: from Supersolids to Superglasses
• Observation of vortices and vortex stripes in a dipolar Bose-Einstein condensate
• Few-body Bose gases in low dimensions -- a laboratory for quantum dynamics
• Quantum droplet states of a binary magnetic gas
• Phases of supersolids in confined dipolar Bose-Einstein condensates
• Consistent theory of self-bound quantum droplets with bosonic pairing
• Self-bound dipolar droplets and supersolids in molecular Bose-Einstein condensates
• Density Fluctuations across the Superfluid-Supersolid Phase Transition in a Dipolar Quantum Gas
• Heating a dipolar quantum fluid into a solid
• Dimensional crossover in the superfluid-supersolid quantum phase transition
• Collective excitations of a spherical ultradilute quantum droplet
• Microscopic pairing theory of a binary Bose mixture with interspecies attractions: bosonic BEC-BCS crossover and ultradilute low-dimensional quantum droplets
• High-energy Bragg scattering measurements of a dipolar supersolid
• Sub-unity superfluid fraction of a supersolid from self-induced Josephson effect
• Thermal instability, evaporation and thermodynamics of one-dimensional liquids in weakly-interacting Bose-Bose mixtures
• Study of the inter-species interactions in an ultracold dipolar mixture
• Variational theory for the ground state and collective excitations of an elongated dipolar condensate
• Strongly correlated quantum droplets in quasi-1D dipolar Bose gas
• Theory for Self-Bound States of Dipolar Bose-Einstein Condensates
• Spinor-Induced Instability of Kinks, Holes and Quantum Droplets
• Structured hetero-symmetric quantum droplets
• Phonon Stability and Sound Velocity of Quantum Droplets in a Boson Mixture
• Quantum droplets of quasi-one-dimensional dipolar Bose-Einstein condensates
• Accurate determination of the scattering length of erbium atoms
• Microscopic derivation of the extended Gross-Pitaevskii equation for quantum droplets in binary Bose mixtures
• Self-bound Doubly-Dipolar Bose-Einstein condensates
• Control of ${}^{164}$Dy Bose-Einstein condensate phases and dynamics with dipolar anisotropy
• Excitations and number fluctuations in an elongated dipolar Bose-Einstein condensate
• Infinite dipolar droplet -- a simple theory for the macro-droplet regime
• Thermal destabilization of self-bound ultradilute quantum droplets
• Ground-state stability and excitation spectrum of a one-dimensional dipolar supersolid
• Metastable Patterns in one- and two-component dipolar Bose-Einstein Condensates
• Phonon Stability of Quantum Droplets in a dipolar Bose gases
• Quantum Criticality of Liquid-Gas Transition in a Binary Bose Mixture
• Ultrawide dark solitons and droplet-soliton coexistence in a dipolar Bose gas with strong contact interactions
• Supersolid Stacks in Antidipolar Bose-Einstein Condensates
• Vortices in quantum droplets of heteronuclear Bose mixtures
• Quantum correlations in dipolar droplets: Time-dependent Hartree-Fock-Bogoliubov theory
• Collective excitations in two-dimensional harmonically trapped quantum droplets
• Attractive Solution of Binary Bose Mixtures: Liquid-Vapor Coexistence and Critical Point
• Classical linear chain behavior from dipolar droplets to supersolids
• Production and stabilization of a spin mixture of ultracold dipolar Bose gases
• Ultradilute self-bound quantum droplets in Bose-Bose mixtures at finite temperature
• Manifestation of relative phase in dynamics of two interacting Bose-Bose droplets
• First-order Bose-Einstein condensation with three-body interacting bosons
• Superexchange Liquefaction of Strongly Correlated Lattice Dipolar Bosons
• Quantum droplet of a two-component Bose gas in an optical lattice near the Mott insulator transition
• Striped Ultradilute Liquid of Dipolar Bosons in Two Dimensions
• Breathing mode of a quantum droplet in a quasi-one-dimensional dipolar Bose gas
• Weber number and the outcome of binary collisions between quantum droplets
• Temperature Dependence of the Density and Excitations of Dipolar Droplets
• Universal properties of dipolar Bose polarons in two dimensions
• Finite-range effects in the two-dimensional repulsive Fermi polaron
• A quantum Monte Carlo based density functional for Dysprosium dipolar system
• Polarized Rabi-Coupled and Spinor Boson Droplets
• Thermal behavior of Bose-Einstein condensates of polar molecules
• Universal Properties of Anisotropic Dipolar Bosons in Two Dimensions
• One-dimensional asymmetrically interacting quantum droplets in Bose-Bose mixtures
• Supersolid phase in two-dimensional soft-core bosons at finite temperature
• Tilted dipolar bosons in the quasi-two-dimensional regime: From liquid stripes to droplets
• Creating and melting a supersolid by heating a quantum dipolar system
• Long lifetime supersolid in a two-component dipolar Bose-Einstein condensate
• Propagation of light in cold emitter ensembles with quantum position correlations due to static long-range dipolar interactions
• Self-Assembled Chains and Solids of Dipolar Atoms in a Multilayer
• Clusters in Separated Tubes of Tilted Dipoles
• Ab-initio Quantum Monte Carlo study of ultracold atomic mixtures
• Rotational dynamics induced by low energy binary collisions of quantum droplets
• Dilute quantum liquid in a K-Rb Bose mixture
• Quasiparticle spectra of mixtures of dipolar and non-dipolar condensates at zero and finite temperatures
• Diminished quantum depletion and correlated droplets in one-dimensional dipolar Bose gas
• Strongly dipolar molecular Bose-Einstein condensates: From few- to many-body physics