Observation of topological transport quantization by dissipation in fast Thouless pumps

Abstract

Quantized dynamics is essential for natural processes and technological applications alike. The work of Thouless on quantized particle transport in slowly varying potentials (Thouless pumping) has played a key role in understanding that such quantization may be caused not only by discrete eigenvalues of a quantum system, but also by invariants associated with the nontrivial topology of the Hamiltonian parameter space. Since its discovery, quantized Thouless pumping has been believed to be restricted to the limit of slow driving, a fundamental obstacle for experimental applications. Here, we introduce non-Hermitian Floquet engineering as a new concept to overcome this problem. We predict that a topological band structure and associated quantized transport can be restored at driving frequencies as large as the system's band gap. The underlying mechanism is suppression of non-adiabatic transitions by tailored, time-periodic dissipation. We confirm the theoretical predictions by experiments on topological transport quantization in plasmonic waveguide arrays.

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Cited by in corpus (44)

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• Quantized Nonlinear Thouless Pumping
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• Nonlinear Thouless pumping: solitons and transport breakdown
• Observation of Non-Abelian Thouless Pump
• Two-dimensional Thouless pumping of light in photonic moiré lattices
• Simulating Chern insulators on a superconducting quantum processor
• Two-dimensional nonlinear Thouless pumping of matter waves
• Entanglement Spectrum Crossings Reveal non-Hermitian Dynamical Topology
• Topological Floquet engineering using two frequencies in two dimensions
• Geometric phase of Wannier-Stark ladders in alkaline-earth(-like) atoms
• Observation of a topological edge state stabilized by dissipation
• Thouless pumping in a driven-dissipative Kerr resonator array
• Non-Hermitian Hartman effect
• Phonon-induced breakdown of Thouless pumping in the Rice-Mele-Holstein model
• First-Principles Demonstration of Non-adiabatic Thouless Pumping of Electrons in A Molecular System
• Phase diagram of the disordered Kitaev chain with long range pairing connected to external baths
• Photon pumping in a weakly-driven quantum cavity-spin system
• Biorthogonal topological charge pumping in non-Hermitian systems
• Rapid-cycle Thouless pumping in a one-dimensional optical lattice
• An ideal rapid-cycle Thouless pump
• Molecular Control of Floquet Topological Phase in Non-adiabatic Thouless Pumping
• Nonparaxiality-triggered Landau-Zener transition in topological photonic waveguides
• Anomalous pumping in the non-Hermitian Rice-Mele model
• Extrinsic topology of Floquet anomalous boundary states in quantum walks
• Non-equilibrium evolution of Bose-Einstein condensate deformation in temporally controlled weak disorder
• Dissipation Enhanced Unidirectional Transport in Topological Systems
• Dissipation engineered directional filter for quantum ratchets
• Fractional transconductance via non-adiabatic topological Cooper pair pumping
• Cutting off the non-Hermitian boundary from an anomalous Floquet topological insulator
• Thouless pumping in Josephson junction arrays
• Time-periodic driving of a bath-coupled open quantum gas of light
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• Absence of disordered Thouless pumps at finite frequency
• Asymmetric topological pumping in nonparaxial photonics
• An effective curved space-time geometric theory of generic twist angle graphene with application to a rotating bilayer configuration
• Quantized charge transport in disordered Floquet topological insulators in the absence of Anderson localization
• A spectrum-based shortcut method for topological systems
• Quantum state transfer and maximal entanglement between distant qubits using a minimal quasicrystal pump
• Nonreciprocity Induced Fractional Nonlinear Thouless Pumping
• Topological phase dynamics described by overtone-synthesized classical and quantum Adler equations
• Optimal control over the full counting statistics in a non-adiabatic pump
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