Control of ${}^{164}$Dy Bose-Einstein condensate phases and dynamics with dipolar anisotropy

Abstract

We investigate the quench dynamics of quasi-one and two dimensional dipolar Bose-Einstein condensates (dBEC) of ${}^{164}$Dy atoms under the influence of a fast rotating magnetic field. The magnetic field thus controls both the magnitude and sign of the dipolar potential. We account for quantum fluctuations, critical to formation of exotic quantum droplet and supersolid phases in the extended Gross-Pitaevskii formalism, which includes the so-called Lee-Huang-Yang (LHY) correction. An analytical variational ansatz allows us to obtain the phase diagrams of the superfluid and droplet phases. The crossover from the superfluid to the supersolid phase and to single and droplet arrays is probed with particle number and dipolar interaction. The dipolar strength is tuned by rotating the magnetic field with subsequent effects on phase boundaries. Following interaction quenches across the aforementioned phases, we monitor the dynamical formation of supersolid clusters or droplet lattices. We include losses due to three-body recombination over the crossover regime, where the three-body recombination rate coefficient scales with the fourth power of the scattering length ($a_s$) or the dipole length ($a_{dd}$). For fixed values of the dimensionless parameter, ${\epsilon }_{dd}=a_{dd}/a_s$, tuning the dipolar anisotropy leads to an enhancement of the droplet lifetimes.

16 pages, 12 figures

References in corpus (34)

• 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
• Transient supersolid properties in an array of dipolar quantum droplets
• Long-lived and transient supersolid behaviors in dipolar quantum gases
• A superfluid-droplet crystal and a free-space supersolid in a dipole-blockaded gas
• New states of matter with fine-tuned interactions: quantum droplets and dipolar supersolids
• Two-dimensional supersolidity in a dipolar quantum gas
• Dipolar gases in quasi one-dimensional geometries
• Quantum droplets of dipolar mixtures
• Two-Dimensional Supersolid Formation in Dipolar Condensates
• Droplets of trapped quantum dipolar bosons
• Rotating a supersolid dipolar gas
• Birth, life, and death of a dipolar supersolid
• Roton Excitations in an Oblate Dipolar Quantum Gas
• Quantized vortices in dipolar supersolid Bose-Einstein condensed gases
• Roton spectroscopy in a harmonically trapped dipolar Bose-Einstein condensate
• Supersolidity in an elongated dipolar condensate
• Supersolidity in Two-Dimensional Trapped Dipolar Droplet Arrays
• Density Fluctuations across the Superfluid-Supersolid Phase Transition in a Dipolar Quantum Gas
• Persistent Currents in Toroidal Dipolar Supersolids
• Maintaining supersolidity in one and two dimensions
• Bose-Einstein condensation of 162Dy and 160Dy
• Supersolid phases of cold atom assemblies
• Spontaneous Formation of Star-Shaped Surface Patterns in a Driven Bose-Einstein Condensate
• Thermal instability, evaporation and thermodynamics of one-dimensional liquids in weakly-interacting Bose-Bose mixtures
• Vacancy supersolid of hard-core bosons on the square lattice
• Self-bound supersolid stripe phase in binary Bose-Einstein condensates
• Supersolids in one dimensional Bose Fermi mixtures
• Supersolid-like square- and honeycomb-lattice crystallization of droplets in a dipolar condensate
• Excitations and number fluctuations in an elongated dipolar Bose-Einstein condensate
• Statistical mechanics of one-dimensional quantum droplets

Cited by in corpus (14)

• Double Microwave Shielding
• Two-dimensional miscible-immiscible supersolid and droplet crystal state in a homonuclear dipolar bosonic mixture
• Supersolid Stacks in Antidipolar Bose-Einstein Condensates
• Spin rotons and supersolids in binary antidipolar condensates
• Classical linear chain behavior from dipolar droplets to supersolids
• Frustration in a dipolar Bose-Einstein condensate introduced by an optical lattice
• Tunneling dynamics of ${}^{164}$Dy supersolids and droplets
• Induced supersolidity and hypersonic flow of a dipolar Bose-Einstein Condensate in a rotating bubble trap
• Induced supersolidity in a Dy-Er mixture
• Unveiling Supersolid Order via Vortex Trajectory Correlations
• Roadmap to vortex nucleation below critical rotation frequency in a dipolar Bose-Einstein condensate
• Generation of wave turbulence in dipolar gases driven across their phase transitions
• Dynamical signatures of superfluidity and shear rigidity in different phases of a dipolar Bose-Einstein condensate
• Strongly dipolar molecular Bose-Einstein condensates: From few- to many-body physics