Experimental Observation of a Generalized Thouless Pump with a Single Spin

Abstract

Adiabatic cyclic modulation of a one-dimensional periodic potential will result in quantized charge transport, which is termed the Thouless pump. In contrast to the original Thouless pump restricted by the topology of the energy band, here we experimentally observe a generalized Thouless pump that can be extensively and continuously controlled. The extraordinary features of the new pump originate from interband coherence in nonequilibrium initial states, and this fact indicates that a quantum superposition of different eigenstates individually undergoing quantum adiabatic following can also be an important ingredient unavailable in classical physics. The quantum simulation of this generalized Thouless pump in a two-band insulator is achieved by applying delicate control fields to a single spin in diamond. The experimental results demonstrate all principal characteristics of the generalized Thouless pump. Because the pumping in our system is most pronounced around a band-touching point, this work also suggests an alternative means to detect quantum or topological phase transitions.

20 pages, 7 figures

References in corpus (35)

• Berry Phase Effects on Electronic Properties
• Advances in Quantum Metrology
• The nitrogen-vacancy colour centre in diamond
• Quantifying Coherence
• Quantum metrology
• Description of quantum coherence in thermodynamic processes requires constraints beyond free energy
• High-fidelity projective readout of a solid-state spin quantum register
• A Thouless Quantum Pump with Ultracold Bosonic Atoms in an Optical Superlattice
• Topological Thouless Pumping of Ultracold Fermions
• An Adiabatic Quantum Electron Pump
• Catalytic Coherence
• Dynamic polarization of single nuclear spins by optical pumping of NV color centers in diamond at room temperature
• Decoherence-protected quantum gates for a hybrid solid-state spin register
• Single-electron current sources: towards a refined definition of ampere
• Low-temperature thermodynamics with quantum coherence
• Witnessing Quantum Coherence: from solid-state to biological systems
• Quantum-enhanced absorption refrigerators
• Sensing remote nuclear spins
• Experimental fault-tolerant universal quantum gates with solid-state spins under ambient conditions
• Single-parameter non-adiabatic quantized charge pumping
• Decoherence and dynamical decoupling control of nitrogen-vacancy center electron spins in nuclear spin baths
• Nuclear spin pair coherence in diamond for atomic scale magnetometry
• Measuring a topological transition in an artificial spin 1/2 system
• Beyond the Quantum Adiabatic Approximation: Adiabatic Perturbation Theory
• Dynamical Quantum Hall Effect in the Parameter Space
• Topological pumping of photons in nonlinear resonator arrays
• Single Spin Magnetic Resonance
• Realization of Fractional Chern Insulators in the Thin-Torus-Limit with Ultracold Bosons
• Quantized pumping and phase diagram topology of interacting bosons
• Quantum information processing in diamond
• Interband Coherence Induced Correction to Adiabatic Pumping in Periodically Driven Systems
• Topological pumping in the one-dimensional Bose-Hubbard model
• Effects of Dephasing on Quantum Adiabatic Pumping with Nonequilibrium Initial States
• A topological classification of interaction-driven spin pumps
• Competing Adiabatic Thouless Pumps in Enlarged Parameter Spaces

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• Floquet dynamical quantum phase transitions in periodically quenched systems
• Fast, robust and amplified transfer of topological edge modes on time-varying mechanical chain
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• Topological classification of Higher-order topological phases with nested band inversion surfaces
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• Dimensional crossover of the integer quantum Hall plateau transition and disordered topological pumping
• First-Principles Demonstration of Non-adiabatic Thouless Pumping of Electrons in A Molecular System
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• Piecewise Adiabatic Following: General Analysis and Exactly Solvable Models
• Observation of spin-tensor induced topological phase transitions of triply degenerate points with a trapped ion
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• Molecular Control of Floquet Topological Phase in Non-adiabatic Thouless Pumping
• Nonparaxiality-triggered Landau-Zener transition in topological photonic waveguides
• Energy Transfer in Random-Matrix ensembles of Floquet Hamiltonians
• Visualising the connection between edge states and the mobility edge in adiabatic and non-adiabatic topological charge transport
• Optical signatures of Mott-superfluid transition in nitrogen-vacancy centers coupled to photonic crystal cavities
• Quantum pumping with adiabatically modulated barriers in three-band pseudospin-1 Dirac-Weyl systems
• Quantum geometry and geometric entanglement entropy of one-dimensional Floquet topological matter
• Asymmetric topological pumping in nonparaxial photonics
• Floquet-Anderson localization in the Thouless pump and how to avoid it
• Revealing many-body effects on interband coherence through adiabatic charge pumping
• A spectrum-based shortcut method for topological systems
• openMMF: a library for multimode driven quantum systems
• Digital Quantum Simulation of Floquet Topological Phases with a Solid-State Quantum Simulator
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