Chiral magnetic effect in three-dimensional optical lattices

Abstract

Although Weyl semimetals have been extensively studied for exploring rich topological physics, the direct observation of the celebrated chiral magnetic effect (CME) associated with the so-called dipolar chiral anomaly has long intrigued and challenged physicists, still remaining elusive in nature. Here we propose a feasible scheme for experimental implementation of ultracold atoms that may enable us to probe the CME with a pure topological current in an artificial Weyl semimetal. The paired Weyl points with the dipolar chiral anomaly emerge in the presence of the well-designed spin-orbital coupling and laser-assisted tunneling. Both of the two artificial fields are readily realizable and highly tunable via current optical techniques using ultracold atoms trapped in three-dimensional optical lattices, providing a reliable way for manipulating Weyl points in the momentum-energy space. By applying a weak artificial magnetic field, the system processes an auxiliary current originated from the topology of a paired Weyl points, namely, the pure CME current. This topological current can be extracted from measuring the center-of-mass motion of ultracold atoms, which may pave the way to directly and unambiguously observe the CME in experiments.

arXiv comment8 pages, 2 figures

References in corpus (53)

• The electronic properties of graphene
• Discovery of a Weyl Fermion Semimetal and Topological Fermi Arcs
• Weyl Semimetal in a Topological Insulator Multilayer
• Ultracold atomic gases in optical lattices: mimicking condensed matter physics and beyond
• A spin-orbit coupled Bose-Einstein condensate
• The Chiral Magnetic Effect
• Artificial gauge potentials for neutral atoms
• Dirac semimetal in three dimensions
• Experimental discovery of Weyl semimetal TaAs
• Theoretical Discovery/Prediction: Weyl Semimetal states in the TaAs material (TaAs, NbAs, NbP, TaP) class
• Realization of the Hofstadter Hamiltonian with ultracold atoms in optical lattices
• Synthetic magnetic fields for ultracold neutral atoms
• Light-induced gauge fields for ultracold atoms
• Realizing the Harper Hamiltonian with Laser-Assisted Tunneling in Optical Lattices
• Experimental observation of Weyl points
• Observation of the chiral magnetic effect in ZrTe5
• Measuring the Chern number of Hofstadter bands with ultracold bosonic atoms
• Topological Bands for Ultracold Atoms
• Spin-Orbit Coupled Degenerate Fermi Gases
• Topological response in Weyl semimetals and the chiral anomaly
• Spin-Injection Spectroscopy of a Spin-Orbit Coupled Fermi Gas
• Creation of effective magnetic fields in optical lattices: The Hofstadter butterfly for cold neutral atoms
• Realization of Two-Dimensional Spin-orbit Coupling for Bose-Einstein Condensates
• Observation of chiral edge states with neutral fermions in synthetic Hall ribbons
• Topological Quantum Matter with Ultracold Gases in Optical Lattices
• Synthetic gauge fields in synthetic dimensions
• Berry Curvature, Triangle Anomalies, and the Chiral Magnetic Effect in Fermi Liquids
• Non-Abelian gauge potentials for ultra-cold atoms with degenerate dark states
• The Chiral Magnetic Effect and Anomaly-Induced Transport
• Electromagnetic Response of Weyl Semimetals
• Experimental realization of a two-dimensional synthetic spin-orbit coupling in ultracold Fermi gases
• Discovery of Weyl fermion semimetals and topological Fermi arc states
• Cold atoms in non-Abelian gauge potentials: From the Hofstadter "moth" to lattice gauge theory
• Dirac vs. Weyl in topological insulators: Adler-Bell-Jackiw anomaly in transport phenomena
• Topological quantum matter with cold atoms
• Spin Hall effects for cold atoms in a light induced gauge potential
• Realization of 2D Spin-orbit Interaction and Exotic Topological Orders in Cold Atoms
• Weyl points in three-dimensional optical lattices: synthetic magnetic monopoles in momentum space
• Spin-orbit coupling and spin Hall effect for neutral atoms without spin-flips
• Tunable topological Weyl semimetal from simple cubic lattices with staggered fluxes
• Observation of nodal-line semimetal with ultracold fermions in an optical lattice
• Dirac, Rashba and Weyl type spin-orbit couplings: toward experimental realization in ultracold atoms
• Simulating and exploring Weyl semimetal physics with cold atoms in a two-dimensional optical lattice
• Type-II Weyl Points in Three-Dimensional Cold Atom Optical Lattices
• Ab initio derivation of Hubbard models for cold atoms in optical lattices
• The Realization and Dectection of Weyl Semimetals and Chiral Anomaly in Cold Atomic Systems
• Emulating topological chiral magnetic effects in artificial Weyl semimetals
• Disordered Weyl semimetals and their topological family
• Dynamics of Weyl quasiparticles emerged in an optical lattice
• Weyl points and topological nodal superfluids in a face-centered cubic optical lattice
• Tunable Weyl Semi-metal and its Possible Realization in Optical Lattice
• Realising Type II Weyl Points in an Optical Lattice
• Emulating topological currents arising from a dipolar parity anomaly in two-dimensional optical lattices

Cited by in corpus (14)

• Realization and detection of non-ergodic critical phases in optical Raman lattice
• Ideal Weyl semimetal with 3D spin-orbit coupled ultracold quantum gas
• Chiral vortical catalysis
• Intertwined Weyl phases emergent from higher-order topology and unconventional Weyl fermions via crystalline symmetry
• Topological Electromagnetic Effects and Higher Second Chern Numbers in Four-Dimensional Gapped Phases
• Electrically tunable Kondo effect as a direct measurement of the chiral anomaly in disorder Weyl semimetals
• Topological Insulators with Hybrid-order Boundary States
• Synthetic spin-orbit coupling for the multispin models in optical lattices
• Phase diagrams of tunable spin-orbit coupled Bose-Einstein condensates
• Meissner-Like Currents of Photons in Anomalous Superradiant Phases
• Bosonic Weyl excitations induced by $p$-orbital interactions in a cubic optical lattice
• Proposal for realizing unpaired Weyl points in a three-dimensional periodically driven optical Raman lattice
• Ultracold atomic lattice systems for simulating topological phases: A review
• Preparation and observation of anomalous counterpropagating edge states in a periodically driven optical Raman lattice