Engineering phase and density of Bose-Einstein condensates in curved waveguides with toroidal topology
arXiv:2306.11873 · doi:10.1088/1367-2630/acf783
Abstract
We investigate the effects of ellipticity-induced curvature on atomic Bose-Einstein condensates confined in quasi-one-dimensional closed-loop waveguides. Our theoretical study reveals intriguing phenomena arising from the interplay between curvature and interactions. Density modulations are observed in regions of high curvature, but these modulations are suppressed by strong repulsive interactions. Additionally, we observe phase accumulation in regions with the lowest curvature when the waveguide with persistent current is squeezed. Furthermore, waveguides hosting persistent currents exhibit dynamic transformations between states with different angular momenta. These findings provide insights into the behavior of atomic condensates in curved waveguides, with implications for fundamental physics and quantum technologies. The interplay between curvature and interactions offers opportunities for exploring novel quantum phenomena and engineering quantum states in confined geometries.
arXiv comment12 pages, 6 figures
References in corpus (59)
- Atomic Scattering in Presence of an External Confinement and a Gas of Impenetrable Bosons
- Observation of persistent flow of a Bose-Einstein condensate in a toroidal trap
- Superflow in a toroidal Bose-Einstein condensate: an atom circuit with a tunable weak link
- Hysteresis in a quantized, superfluid atomtronic circuit
- Driving phase slips in a superfluid atom circuit with a rotating weak link
- Bose-Einstein condensation in a circular waveguide
- Experimental realization of Josephson junctions for an Atom SQUID
- Quantised supercurrent decay in an annular Bose-Einstein condensate
- Quench-induced supercurrents in an annular Bose gas
- Phenomenological damping in trapped atomic Bose-Einstein condensates
- Persistent currents in spinor condensates
- Roadmap on Atomtronics: State of the art and perspective
- Toroidal optical dipole traps for atomic Bose-Einstein condensates using Laguerre-Gaussian beams
- Svortices and the fundamental modes of the "snake instability": Possibility of observation in the gaseous Bose-Einstein Condensate
- Bose beams: coherent propagation through a guide
- Atomtronic circuits: from many-body physics to quantum technologies
- Atomtronics-enabled Quantum Technologies
- Observation of ultracold atomic bubbles in orbital microgravity
- Bose-Einstein Condensation on the Surface of a Sphere
- Generating ring currents, solitons, and svortices by stirring a Bose-Einstein condensate in a toroidal trap
- Threshold for creating excitations in a stirred superfluid ring
- Imprinting persistent currents in tunable fermionic rings
- Quantum Bubbles in Microgravity
- Persistent currents in rings of ultracold fermionic atoms
- Dynamics and interaction of vortex lines in an elongated Bose-Einstein condensate
- Solitons, solitonic vortices, and vortex rings in a confined Bose-Einstein condensate
- Shell potentials for microgravity Bose-Einstein condensates
- Probing the circulation of ring-shaped Bose-Einstein condensates
- Relaxation dynamics in the merging of independent condensates
- Inelastic Collisions of Solitary Waves in Anisotropic Bose-Einstein Condensates: Sling-Shot Events and Expanding Collision Bubbles
- Absence of anomalous interactions in the quantum theory of constrained charged particles in presence of electrical currents
- Curvature-induced geometric potential in strain-driven nanostructures
- Producing superfluid circulation states using phase imprinting
- Persistent currents with non-quantized angular momentum
- Contact resistance and phase slips in mesoscopic superfluid atom transport
- Vortices in a toroidal Bose-Einstein condensate with a rotating weak link
- Low-dimensional quantum gases in curved geometries
- Bose-Einstein Condensation on Curved Manifolds
- One-dimensional description of a Bose-Einstein condensate in a rotating closed-loop waveguide
- Perspective on Quantum Bubbles in Microgravity
- Stability of persistent currents in spinor Bose-Einstein condensates
- Vortex excitation in a stirred toroidal Bose-Einstein condensate
- Tunneling of persistent currents in coupled ring-shaped Bose-Einstein condensates
- Engineering Dark Solitary waves in Ring-Trap Bose-Einstein condensates
- Stochastic phase slips in toroidal Bose-Einstein condensates
- Superfluid vortex dynamics on a torus and other toroidal surfaces of revolution
- Persistent current oscillations in a double-ring quantum gas
- Solitonic Vortices in Bose-Einstein Condensates
- Nonlinear dynamics of Josephson vortices in merging superfluid rings
- Generation of Josephson vortices in stacked toroidal Bose-Einstein condensates
- Symmetry breaking in interacting ring-shaped superflows of Bose-Einstein condensates
- Exactly solvable model for a solitonic vortex in a compressible superfluid
- Dark soliton collisions in a toroidal Bose-Einstein condensate
- Bose-Einstein condensate in an elliptical waveguide
- Effective quantum dynamics in curved thin-layer system with inhomogeneous confinement
- Producing flow in "racetrack" atom circuits by stirring at zero and non-zero temperature
- Bound solitonic states in trapped multidimensional Bose-Einstein condensates
- Acoustic analogue of Hawking radiation in quantized circular superflows of Bose-Einstein condensates
- Dynamical Instability of 3d Stationary and Traveling Planar Dark Solitons
Cited by in corpus (6)
- Persistent currents in ultracold gases
- Quantum Vortices in Curved Geometries
- Quantum wave representation of dissipative fluids
- Bose-Einstein condensation in exotic lattice geometries
- Dispersion Managed Elliptical Atomtronics for Interferometry
- Geometric potential for a Bose-Einstein condensate on a curved surface