Direct observation of chiral currents and magnetic reflection in atomic flux lattices

Abstract

The prospect of studying topological matter with the precision and control of atomic physics has driven the development of many techniques for engineering artificial magnetic fields and spin-orbit interactions. Recently, the idea of introducing nontrivial topology through the use of internal (or external) atomic states as effective "synthetic dimensions" has garnered attraction for its versatility and possible immunity from heating. Here, we directly engineer tunable artificial gauge fields through the local control of tunneling phases in an effectively two-dimensional manifold of discrete atomic momentum states. We demonstrate the ability to create homogeneous gauge fields of arbitrary value, directly imaging the site-resolved dynamics of induced chiral currents. We furthermore engineer the first inhomogeneous artificial gauge fields for cold atoms, observing the magnetic reflection of atoms incident upon a step-like variation of an artificial vector potential. These results open up new possibilities for the study of topological phases and localization phenomena in atomic gases.

5 pages, 3 figures; 3 pages of supplementary materials

References in corpus (7)

• Topological Quantum Matter with Ultracold Gases in Optical Lattices
• Tunable gauge potential for neutral and spinless particles in driven lattices
• Observation of the topological soliton state in the Su-Schrieffer-Heeger model
• Synthetic dimensions and spin-orbit coupling with an optical clock transition
• Spin-orbit coupled fermions in an optical lattice clock
• Low velocity quantum reflection of Bose-Einstein condensates
• Synthetic Dimensions for Cold Atoms from Shaking a Harmonic Trap

Cited by in corpus (105)

• Topological Photonics
• Observation of the topological soliton state in the Su-Schrieffer-Heeger model
• Dipolar physics: A review of experiments with magnetic quantum gases
• Topological quantum matter in synthetic dimensions
• Photonic Topological Insulator in Synthetic Dimensions
• Topological quantum matter with cold atoms
• A single photonic cavity with two independent physical synthetic dimensions
• Spin-orbit coupled fermions in an optical lattice clock
• Microscopy of the interacting Harper-Hofstadter model in the few-body limit
• Artificial gauge fields in materials and engineered systems
• Tunable non-reciprocal quantum transport through a dissipative Aharonov-Bohm ring in ultracold atoms
• Thouless pumping and topology
• Tailoring quantum gases by Floquet engineering
• Experimental band structure spectroscopy along a synthetic dimension
• Realization of a fractional quantum Hall state with ultracold atoms
• Probing chiral edge dynamics and bulk topology of a synthetic Hall system
• Engineering a flux-dependent mobility edge in disordered zigzag chains
• The 6D quantum Hall effect and 3D topological pumps
• Correlated dynamics in a synthetic lattice of momentum states
• Interacting atomic quantum fluids on momentum-space lattices
• Observation of momentum-space chiral edge currents in room-temperature atoms
• Engineering tunable local loss in a synthetic lattice of momentum states
• Semi-synthetic zigzag optical lattice for ultracold bosons
• Topological charge pumping in the interacting bosonic Rice-Mele model
• Flat-band localization in Creutz superradiance lattices
• Band Gap Closing in a Synthetic Hall Tube of Neutral Fermions
• Creating, probing, and manipulating fractionally charged excitations of fractional Chern insulators in optical lattices
• Hall viscosity in quantum systems with discrete symmetry: point group and lattice anisotropy
• A comprehensive review on developments of synthetic dimensions
• Nonlinear dynamics in a synthetic momentum state lattice
• Floquet engineering of optical solenoids and quantized charge pumping along tailored paths in two-dimensional Chern insulators
• Ballistic, diffusive, and arrested transport in disordered momentum-space lattices
• Universal Hall Response in Synthetic Dimensions
• Quantum phases and topological properties of interacting fermions in one-dimensional superlattices
• Interacting Hofstadter Interface
• Imaging topology of Hofstadter ribbons
• Chiral Dynamics of Ultracold Atoms under a Tunable SU(2) Synthetic Gauge Field
• Quantized Rabi Oscillations and Circular Dichroism in Quantum Hall Systems
• Interacting bosonic flux ladders with a synthetic dimension: Ground-state phases and quantum quench dynamics
• The quantized Hall conductance of a single atomic wire: A proposal based on synthetic dimensions
• Many-body chiral edge currents and sliding phases of atomic spinwaves in momentum-space lattice
• Measurable signatures of bosonic fractional Chern insulator states and their fractional excitations in a quantum-gas microscope
• Four-dimensional topological lattices through connectivity
• Reversal of quantised Hall drifts at non-interacting and interacting topological boundaries
• Bose-Hubbard physics in synthetic dimensions from interaction Trotterization
• Floquet superradiance lattices in thermal atoms
• Measuring Chern numbers in Hofstadter strips
• Mesoscopic Vortex-Meissner currents in ring ladders
• Flux-Stabilized Majorana Zero Modes in Coupled One-Dimensional Fermi Wires
• From Topological Superconductivity to Quantum Hall States in Coupled Wires
• Photovoltaic Effect of Atomtronics Induced by Artificial Gauge Field
• Different models of gravitating Dirac fermions in optical lattices
• Probing the Hall Voltage in Synthetic Quantum Systems
• Tunable Flux through a Synthetic Hall Tube of Neutral Fermions
• Resonant dynamics of strongly interacting SU($n$) fermionic atoms in a synthetic flux ladder
• Experimental realization of a fermionic spin-momentum lattice
• Multi-frequency optical lattice for dynamic lattice-geometry control
• Finite-temperature properties of interacting bosons on a two-leg flux ladder
• Superfluid Vortices in Four Spatial Dimensions
• Effective triangular ladders with staggered flux from spin-orbit coupling in 1D optical lattices
• Stückelberg interferometry using spin-orbit-coupled cold atoms in an optical lattice
• Synthetic Hall ladder with tunable magnetic flux
• Robust and Ultrafast State Preparation by Ramping Artificial Gauge Potentials
• Quantum phases of strongly-interacting bosons on a two-leg Haldane ladder
• Topological Lifshitz Transitions, Orbital Currents, and Interactions in Low-dimensional Fermi Gases in Synthetic Gauge Fields
• Synthetic ${\mathbb{Z}}_2$ gauge theories based on parametric excitations of trapped ions
• A dark state of Chern bands: Designing flat bands with higher Chern number
• Chiral orbital order of interacting bosons without higher bands
• Nonclassical states in strongly correlated bosonic ring ladders
• Synthetic non-Abelian topological charges in ultracold atomic gases
• Spin-gap spectroscopy in a bosonic flux ladder
• Multiorder topological superfluid phase transitions in a two-dimensional optical superlattice
• Flux enhanced localization and reentrant delocalization in the quench dynamics of two interacting bosons on a Bose-Hubbard ladder
• Heat, particle and chiral currents in a boundary driven bosonic ladders in presence of gauge fields
• Simulating Higher-Order Topological Insulators in Density Wave Insulators
• Tunable quantum switcher and router of cold atom matter waves using artificial magnetic fields
• Efficiency of fermionic quantum distillation
• Flux induced re-entrant dynamics in the quantum walk of interacting bosons
• Statistics-tuned phases of pseudofermions in one dimension
• Operational Dynamical Modeling of spin 1/2 relativistic particles: the Dirac equation and its classical limit
• Unconventional edge states in a two-leg ladder
• Quantum phases of constrained bosons on a two-leg Bose-Hubbard ladder
• Simulating two-dimensional dynamics within a large-size atomic spin
• Topological phases in the Fermi-Hofstadter-Hubbard model on hybrid-space ladders
• Topological spin-orbit-coupled fermions beyond rotating wave approximation
• Fractional quantum anomalous Hall phase for Raman superarray of Rydberg atoms
• Synthetic spin-orbit coupling for the multispin models in optical lattices
• Quantized topological phases beyond square lattices in Floquet synthetic dimensions
• High Chern number topological superfluids and new class of topological phase transitions of Rashba spin-orbit coupled fermions on a lattice
• Antichiral and trap-skin dynamics in a nonreciprocal bosonic two-leg ladder with artificial magnetic flux
• Coherent spin mixing via spin-orbit coupling in Bose gases
• Random-Flux-Induced Transition Sequence between Weak and Strong Topological Phases with Anisotropic Localization Properties
• Designing nontrivial one-dimensional Floquet topological phases using a spin-1/2 double-kicked rotor
• Curved vortex surfaces in four-dimensional superfluids: II. Equal-frequency double rotations
• Curved vortex surfaces in four-dimensional superfluids: I. Unequal-frequency double rotations
• Chiral excitation flows of a multinode network based on synthetic gauge fields
• Synthesizing the Quantum Spin Hall Phase for Ultracold Atoms in Bichromatic Chiral Optical Ladders
• Interaction-induced chiral-transport inversion
• Observability of a Sharp Majorana Transition in a Few-Body Model
• Reentrant topology and reverse pumping in a quasiperiodic flux ladder
• Anomalous reflection at the interface of binary synthetic photonic lattices
• Anomalous enhancement of Neel order in the $S=1/2$ square lattice Heisenberg model under fictitious magnetic field
• The attractive Hubbard model as an $SO(3)$ system of competing phases: supersolid order and its thermal melting
• Synchronized Aharonov-Bohm Motifs via Engineered Dissipation
• Dynamics of interacting bosons in a two-leg ring ladder with artificial magnetic flux and ac-driven modulations