Nonuniversal beyond mean field properties of quasi-two-dimensional dipolar Bose gases
arXiv:1806.03013 · doi:10.1103/PhysRevA.98.043601
Abstract
We study a quasi-two dimensional gas of bosonic dipoles, calculating the beyond mean field corrections to the ground state energy and chemical potential neglecting the transverse mode structure. We show that the corrections are sensitive to the high momentum part of the interaction and cannot be expressed solely in terms of the scattering length and the dipole strength. While nonuniversal, the correction is found to be negative, which provides an additional attractive term in the extended Gross-Pitaevskii equation, enhancing the roton instability.
References in corpus (21)
- Bose-Einstein Condensation of Erbium
- Observation of the supersolid stripe phase in spin-orbit coupled Bose-Einstein condensates
- 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
- Supersolid formation in a quantum gas breaking continuous translational symmetry
- Strongly correlated 2D quantum phases with cold polar molecules: controlling the shape of the interaction potential
- Strong dipolar effects in a quantum ferrofluid
- d-wave collapse and explosion of a dipolar Bose-Einstein condensate
- Observation of Roton Mode Population in a Dipolar Quantum Gas
- Radial and angular rotons in trapped dipolar gases
- Quantum phase transition in a two-dimensional system of dipoles
- Stability of quasi-two-dimensional Bose-Einstein condensates with dominant dipole-dipole interactions
- Dipolar gases in quasi one-dimensional geometries
- Striped states in a many-body system of tilted dipoles
- Ground state energy of the two-dimensional weakly interacting Bose gas: First correction beyond Bogoliubov theory
- Dipolar Bose Superstripes
- Finite temperature analysis of a quasi2D dipolar gas
- Coexistence, interfacial energy, and the fate of microemulsions in 2D dipolar bosons
- Non-Universal Equation of State of the Two-Dimensional Bose Gas
- Weakly interacting two-dimensional system of dipoles: limitations of mean-field theory
- Dipolar condensates with tilted dipoles in a pancake-shaped confinement
Cited by in corpus (9)
- Strongly correlated quantum droplets in quasi-1D dipolar Bose gas
- Borromean droplet in three-component ultracold Bose gases
- Two-dimensional quantum droplets in dipolar Bose gases
- Droplet under confinement: Competition and coexistence with soliton bound state
- Quantum-Fluctuation-Driven Dynamics of Droplet Splashing, Recoiling and Deposition in Ultracold Binary Bose Gases
- Beyond Gross-Pitaevskii equation for 1D gas: quasiparticles and solitons
- Self-consistent Description of Bose-Bose Droplets: Modified Gapless Hartree-Fock-Bogoliubov Method
- Self-consistent Description of Bose-Bose Droplets: Harmonically Trapped Quasi-2D Droplets
- Effects of weak disorder on two-dimensional bilayered dipolar Bose-Einstein condensates