Geometrical pumping with a Bose-Einstein condensate

Abstract

We realized a quantum geometric "charge" pump for a Bose-Einstein condensate (BEC) in the lowest Bloch band of a novel bipartite magnetic lattice. Topological charge pumps in filled bands yield quantized pumping set by the global -- topological -- properties of the bands. In contrast, our geometric charge pump for a BEC occupying just a single crystal momentum state exhibits non-quantized charge pumping set by local -- geometrical -- properties of the band structure. Like topological charge pumps, for each pump cycle we observed an overall displacement (here, not quantized) and a temporal modulation of the atomic wavepacket's position in each unit cell, i.e., the polarization.

5 pages, 4 figures for the main text + supplementary material

References in corpus (17)

• Observation of Majorana Fermions in Ferromagnetic Atomic Chains on a Superconductor
• Measuring the Chern number of Hofstadter bands with ultracold bosonic atoms
• Spin-Injection Spectroscopy of a Spin-Orbit Coupled Fermi Gas
• A Thouless Quantum Pump with Ultracold Bosonic Atoms in an Optical Superlattice
• Topological Thouless Pumping of Ultracold Fermions
• An Aharonov-Bohm interferometer for determining Bloch band topology
• Single-parameter non-adiabatic quantized charge pumping
• Experimental determination of the Berry phase in a superconducting charge pump
• Charge Pumping of Interacting Fermion Atoms in the Synthetic Dimension
• Topological insulator and particle pumping in a one-dimensional shaken optical lattice
• Quantum Transport of Bosonic Cold Atoms in Double Well Optical Lattices
• Manipulating atoms in an optical lattice: Fractional fermion number and its optical quantum measurement
• Flux lattices reformulated
• Simulation and measurement of the fractional particle number in one-dimensional optical lattices
• Anomalous charge pumping in a one-dimensional optical superlattice
• Adiabatic Control of Atomic Dressed States for Transport and Sensing
• Observations of $\lambda /4$ structure in a low-loss radiofrequency-dressed optical lattice

Cited by in corpus (79)

• Topological Photonics
• Electric Multipole Moments, Topological Multipole Moment Pumping, and Chiral Hinge States in Crystalline Insulators
• Topological Bands for Ultracold Atoms
• Topological Quantum Matter with Ultracold Gases in Optical Lattices
• Observation of the topological soliton state in the Su-Schrieffer-Heeger model
• Topological quantum matter with cold atoms
• Artificial gauge fields in materials and engineered systems
• Experimental Measurement of the Berry Curvature from Anomalous Transport
• Thouless pumping and topology
• Observation of a non-Abelian Yang Monopole: From New Chern Numbers to a Topological Transition
• Topological Phase Transitions and Thouless Pumping of Light in Photonic Waveguide Arrays
• Synthetic spin-orbit coupling in an optical lattice clock
• Nonlinear Thouless pumping: solitons and transport breakdown
• Topological pumping of edge states via adiabatic passage
• Topological fractional pumping with alkaline-earth(-like) ultracold atoms
• Spin pumping and measurement of spin currents in optical superlattices
• Multi-particle Wannier states and Thouless pumping of interacting bosons
• Topological Floquet-Thouless energy pump
• Self-oscillating pump in a topological dissipative atom-cavity system
• Topological charge pumping in the interacting bosonic Rice-Mele model
• Emergent pseudospin-1 Maxwell fermions with a threefold degeneracy in optical lattices
• Two-dimensional Thouless pumping of light in photonic moiré lattices
• Floquet Semimetal with Floquet-band Holonomy
• Topological pumping in a Floquet-Bloch band
• Laughlin's topological charge pump in an atomic Hall cylinder
• Fractional charge pumping of interacting bosons in one-dimensional superlattice
• Quantum Charge Pumps with Topological Phases in Creutz Ladder
• Quantum metric contribution to the pair mass in spin-orbit coupled Fermi superfluids
• Dirac and Weyl Rings in Three Dimensional Cold Atom Optical Lattices
• Topological charge pumping by sliding moiré pattern
• Interactions enable Thouless pumping in a nonsliding lattice
• Unconventional topology with a Rashba spin-orbit coupled quantum gas
• Topological dynamics and excitations in lasers and condensates with saturable gain or loss
• Thouless Pumps and Bulk-Boundary Correspondence in Higher-Order Symmetry-Protected Topological Phases
• Topological features of ground states and topological solitons in generalized Su-Schrieffer-Heeger models using generalized time-reversal, particle-hole, and chiral symmetries
• Quantum Transport of Rydberg Excitons with Synthetic Spin-Exchange Interactions
• Floquet engineering topological Dirac bands
• Quantized Topological Anderson-Thouless Pump
• Fast, robust and amplified transfer of topological edge modes on time-varying mechanical chain
• Exploring topological double-Weyl semimetals with cold atoms in optical lattices
• Simulating bosonic Chern insulators in one-dimensional optical superlattices
• Measuring Chern numbers in Hofstadter strips
• Topology-dependent quantum dynamics and entanglement-dependent topological pumping in superconducting qubit chains
• Two-dimensional optical quasicrystal potentials for ultracold atom experiments
• Topological pumping assisted by Bloch oscillations
• Charge density wave and charge pump of interacting fermions in circularly shaken hexagonal optical lattices
• Thouless pumping in a driven-dissipative Kerr resonator array
• Topological magnon insulator and quantized pumps from strongly-interacting bosons in optical superlattices
• Nonlinear Thouless Pumping of Solitons Across an Impurity
• Feedback Induced Magnetic Phases in Binary Bose-Einstein Condensates
• Topological metal bands with double-triple-point fermions in optical lattices
• Dimensional crossover of the integer quantum Hall plateau transition and disordered topological pumping
• Transport of Vector Solitons in Spin-Dependent Nonlinear Thouless Pumps
• Biorthogonal topological charge pumping in non-Hermitian systems
• Observation of dynamical topology in 1D
• Topological quantum pump of strongly interacting fermions in coupled chains
• Transport controlled by Poincaré orbit topology in a driven inhomogeneous lattice gas
• Topological pumping induced by spatiotemporal modulation of interaction
• Artificial topological models based on a one-dimensional spin-dependent optical lattice
• Non-Adiabatic Effect in Topological and Interacting Charge Pumping
• Topological optical Raman superlattices
• Topological photon pumping in quantum optical systems
• Uncover band topology via quantized drift in two-dimensional Bloch oscillations
• Topological charge pumping with subwavelength Raman lattices
• Determination of Chern numbers with a phase retrieval algorithm
• 4$\pi$ and 8$\pi$ dual Josephson effects induced by symmetry defects
• Symmetry-Protected Solitons and Bulk-Boundary Correspondence in Generalized Jackiw-Rebbi Models
• Lattice dynamics in an emergent Zeeman lattice
• Quantum transport phenomena induced by time-dependent fields
• Generalized Aubry-Andre-Harper Models in Optical Superlattices
• Absence of disordered Thouless pumps at finite frequency
• Floquet-Anderson localization in the Thouless pump and how to avoid it
• A spectrum-based shortcut method for topological systems
• Band-edge superfluid of Bose-Einstein condensates in the spin-orbit-coupled Zeeman lattice
• Two-particle topological Thouless spin pump
• A symmetry-protected topological optical lattice clock
• Connecting Topological Anderson and Mott Insulators in Disordered Interacting Fermionic Systems
• In situ magnetic-field stabilization for quantum-gas experiments
• Topological dynamics of adiabatic cat states