Strongly correlated quantum droplets in quasi-1D dipolar Bose gas
arXiv:1908.00108 · doi:10.1103/PhysRevLett.124.090401
Abstract
We exploit a few- to many-body approach to study strongly interacting dipolar bosons in the quasi-one-dimensional system. The dipoles attract each other while the short range interactions are repulsive. Solving numerically the multi-atom Schrödinger equation, we discover that such systems can exhibit not only the well known bright soliton solutions but also novel quantum droplets for a strongly coupled case. For larger systems, basing on microscopic properties of the found few-body solution, we propose a new equation for a density amplitude of atoms. It accounts for fermionization for strongly repelling bosons by incorporating the Lieb-Liniger energy in a local density approximation and approaches the standard Gross-Pitaevskii equation (GPE) in the weakly interacting limit. Not only does such a framework provide an alternative mechanism of the droplet stability, but it also introduces means to further analyze this previously unexplored quantum phase. In the limiting strong repulsion case, yet another simple multi-atom model is proposed. We stress that the celebrated Lee-Huang-Yang term in the GPE is not applicable in this case.
6+6 pages, 4+2 figures, comments welcome, version accepted in Physical Review Letters
References in corpus (35)
- The physics of dipolar bosonic quantum gases
- Quantum Mechanical Stabilization of a Collapsing Bose-Bose Mixture
- Quantum liquid droplets in a mixture of Bose-Einstein condensates
- Observation of quantum droplets in a strongly dipolar Bose gas
- Observing the Rosensweig instability of a quantum ferrofluid
- 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
- Observation of a dipolar quantum gas with metastable supersolid properties
- Ultradilute low-dimensional liquids
- Bright soliton to quantum droplet transition in a mixture of Bose-Einstein condensates
- Transient supersolid properties in an array of dipolar quantum droplets
- Long-lived and transient supersolid behaviors in dipolar quantum gases
- From Few to Many: Observing the Formation of a Fermi Sea One Atom at a Time
- Low-dimensional Bose liquids: beyond the Gross-Pitaevskii approximation
- Quantum filaments in dipolar Bose-Einstein condensates
- Dynamics of one-dimensional quantum droplets
- Observation of Roton Mode Population in a Dipolar Quantum Gas
- Self-bound dipolar droplet: a localized matter-wave in free space
- Probing the Excitations of a Lieb-Liniger Gas from Weak to Strong Coupling
- Dilute dipolar quantum droplets beyond the extended Gross-Pitaevskii equation
- Path-integral Monte Carlo study on a droplet of a dipolar Bose-Einstein condensate stabilized by quantum fluctuation
- Ground-state properties of few dipolar bosons in a quasi-one-dimensional harmonic trap
- Quantum fluctuations in quasi-one-dimensional dipolar Bose-Einstein condensates
- Collective excitations of self-bound droplets of a dipolar quantum fluid
- Scissors mode of dipolar quantum droplets of dysprosium atoms
- Crossover between few and many fermions in a harmonic trap
- Ground-state energy and excitation spectrum of the Lieb-Liniger model : accurate analytical results and conjectures about the exact solution
- Tan's Contact for Trapped Lieb-Liniger Bosons at Finite Temperature
- Solitons in Tonks-Girardeau gas with dipolar interactions
- Properties of strongly dipolar Bose gases beyond the Born approximation
- Engineering Bright Matter-Wave Solitons of Dipolar Condensates
- Many-body soliton-like states of the bosonic ideal gas
- Nonuniversal beyond mean field properties of quasi-two-dimensional dipolar Bose gases
- Roton in a few-body dipolar system
Cited by in corpus (22)
- Quantum droplets of quasi-one-dimensional dipolar Bose-Einstein condensates
- Dropleton-Soliton Crossover mediated via Trap Modulation
- Ultrawide dark solitons and droplet-soliton coexistence in a dipolar Bose gas with strong contact interactions
- Revisiting a stability problem of two-component droplets
- Formation and fragmentation of quantum droplets in a quasi-one dimensional dipolar Bose gas
- Zero-energy modes of two-component Bose-Bose droplets
- Stability and collisions of quantum droplets in PT -symmetric dual-core couplers
- Polarization angle dependence of the breathing modes in confined one-dimensional dipolar bosons
- Superexchange Liquefaction of Strongly Correlated Lattice Dipolar Bosons
- Oscillations of a quasi-one-dimensional dipolar supersolid
- Quantum Monte Carlo-based density functional for one-dimensional Bose-Bose mixtures
- Beyond Gross-Pitaevskii equation for 1D gas: quasiparticles and solitons
- Breathing mode of a quantum droplet in a quasi-one-dimensional dipolar Bose gas
- Repulsive dynamics of strongly attractive one-dimensional quantum gases
- Super-Tonks-Girardeau Quench in the Extended Bose-Hubbard Model
- Ground-state properties of dipolar Bose-Einstein condensates with spin-orbit coupling and quantum fluctuations
- Effect of transverse confinement on a quasi-one dimensional dipolar Bose gas
- Droplet-gas phases and their dynamical formation in particle imbalanced mixtures
- Clusters in Separated Tubes of Tilted Dipoles
- Phase diagram and elementary excitations of strongly interacting droplets with non-local interactions
- Diminished quantum depletion and correlated droplets in one-dimensional dipolar Bose gas
- A Kaleidoscope of Topological Structures in Dipolar Bose-Einstein Condensates with Weyl-Like Spin-Orbit Coupling in Anharmonic Trap