Emulating topological chiral magnetic effects in artificial Weyl semimetals

Abstract

We realized highly tunable Weyl semimetal-bands and subsequently emulated the topological chiral magnetic effects in superconducting quantum circuits. Driving the superconducting quantum circuits with elaborately designed microwave fields, we mapped the momentum space of a lattice to the parameter space, realizing the Hamiltonian of a Weyl semimetal. By measuring the energy spectrum, we directly imaged the Weyl points of cubic lattices, whose topological winding numbers were further determined from the Berry curvature measurement. In particular, we used an additional microwave field to produce a momentum-dependent chemical potential, from which the chiral magnetic topological current was extracted in the presence of an artificial magnetic field. This pure topological current is proportional to the magnetic field, which is in contrast to the famous Ampere's law, and may have significant impacts on topological materials and quantum devices.

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Cited by in corpus (27)

• Experimental Measurement of the Quantum Metric Tensor and Related Topological Phase Transition with a Superconducting Qubit
• Non-Hermitian Topological Anderson Insulators
• Experimental Observation of Tensor Monopoles with a Superconducting Qudit
• Circumventing the no-go theorem: A single Weyl point surrounded by nodal walls
• Topology and retardation effect of a giant atom in a topological waveguide
• Quantum simulation for three-dimensional chiral topological insulator
• Experimental Detection of the Quantum Phases of a Three-Dimensional Topological Insulator on a Spin Quantum Simulator
• Digital Simulation of Topological Matter on Programmable Quantum Processors
• Demonstration of acoustic high-order Stiefel-Whitney semimetal in bilayer graphene sonic crystals
• Topological Anderson insulators induced by random binary disorders
• Bandgap-Assisted Quantum Control of Topological Edge States in a Cavity
• Cooper-pair transistor as a minimal topological quantum circuit
• Observing and braiding topological Majorana modes on programmable quantum simulators
• Topological classification of Higher-order topological phases with nested band inversion surfaces
• Higher-order Weyl superconductors with anisotropic Weyl-point connectivity
• Extracting non-Abelian quantum metric tensor and its related Chern numbers
• Chiral magnetic effect in three-dimensional optical lattices
• Floquet and Anomalous Floquet Weyl Semimetals
• Dissipation-induced topological phase transition and periodic-driving-induced photonic topological state transfer in a small optomechanical lattice
• Band geometry from position-momentum duality at topological band crossings
• Emulating topological currents arising from a dipolar parity anomaly in two-dimensional optical lattices
• In situ mixer calibration for superconducting quantum circuits
• Observation of Braid-Protected Unpaired Exceptional Points
• Tensor Theory for Higher Dimensional Chern Insulators with Large Chern Numbers
• Direct measurement of the quantum geometric tensor in pseudo-Hermitian systems
• Resilient superconducting-element design with genetic algorithms
• Digital Quantum Simulation of Floquet Topological Phases with a Solid-State Quantum Simulator