Pseudomagnetic fields for sound at the nanoscale

Abstract

There is a growing effort in creating chiral transport of sound waves. However, most approaches so far are confined to the macroscopic scale. Here, we propose a new approach suitable to the nanoscale which is based on pseudomagnetic fields. These fields are the analogon for sound of the pseudomagnetic field for electrons in strained graphene. In our proposal, they are created by simple geometrical modifications of an existing and experimentally proven phononic crystal design, the snowflake crystal. This platform is robust, scalable, and well-suited for a variety of excitation and readout mechanisms, among them optomechanical approaches.

References in corpus (30)

• The electronic properties of graphene
• Topological Photonics
• Energy gaps, topological insulator state and zero-field quantum Hall effect in graphene by strain engineering
• Topological Acoustics
• Acoustic topological insulator and robust one-way sound transport
• Size, Shape and Low Energy Electronic Structure of Carbon Nanotubes
• Observation of phononic helical edge states in a mechanical 'topological insulator'
• Topological Phononic Crystals with One-Way Elastic Edge Waves
• Topological Boundary Modes in Isostatic Lattices
• Topological mechanics of gyroscopic metamaterials
• Topologically protected elastic waves in phononic metamaterials
• Floquet Topological Insulators for Sound
• Strain-induced pseudomagnetic field and Landau levels in photonic structures
• Valley Vortex States in Sonic Crystals
• Topological modes bound to dislocations in mechanical metamaterials
• Coherent coupling between radio frequency, optical, and acoustic waves in piezo-optomechanical circuits
• Topological phonon modes and their role in dynamic instability of microtubules
• Classification of topological phonons in linear mechanical metamaterials
• Strain-induced pseudo-magnetic field for novel graphene electronics
• Nonlinear conduction via solitons in a topological mechanical insulator
• Edge States and the Quantized Hall Effect in Graphene
• Symmetry-based approach to electron-phonon interactions in graphene
• Tunable topological phononic crystals
• Two-dimensional phononic-photonic bandgap optomechanical crystal cavity
• Transformable topological mechanical metamaterials
• Mechanical Weyl Modes in Topological Maxwell Lattices
• Manipulation of Dirac Cones in Mechanical Graphene
• Pseudo-time-reversal symmetry and topological edge states in two-dimensional acoustic crystals
• Helical edge states and topological phase transitions in phononic systems using bi-layered lattices
• Topological boundary modes in jammed matter

Cited by in corpus (49)

• Elastic higher-order topological insulator with topologically protected corner states
• Topological Sound
• Experimental realization of on-chip topological nanoelectromechanical metamaterials
• Artificial gauge fields in materials and engineered systems
• Tailoring Structure-borne Sound Through Bandgap Engineering in Phononic Crystals and Metamaterials: A Comprehensive Review
• Subwavelength and directional control of flexural waves in zone-folding induced topological plates
• Actively controllable topological phase transition in phononic beam systems
• Observation of acoustic Landau quantization and quantum-Hall-like edge states
• Snowflake Topological Insulator for Sound Waves
• Design and Experimental Observation of Valley-Hall Edge States in Diatomic-Graphene-like Elastic Waveguides
• Observation of Acoustic Valley Vortex States and Valley-Chirality Locked Beam Splitting
• Two-Dimensional Optomechanical Crystal Cavity with High Quantum Cooperativity
• Valley based splitting of topologically protected helical waves in elastic plates
• Sonic Landau-level lasing and synthetic gauge fields in mechanical metamaterials
• Observation of Gigahertz Topological Valley Hall Effect in Nanoelectromechanical Phononic Crystals
• Laser cooling of a nanomechanical oscillator to the zero-point energy
• Experimental demonstration of topological waveguiding in elastic plates with local resonators
• Edge Modes and Asymmetric Wave Transport in Topological Lattices: Experimental Characterization at Finite Frequencies
• Nanomechanical topological insulators with an auxiliary orbital degree of freedom
• Optomechanical crystal with bound states in the continuum
• Nonreciprocal topological phononics in optomechanical arrays
• Tunable pseudo-magnetic fields for polaritons in strained metasurfaces
• Landau levels in strained two-dimensional photonic crystals
• Propagating edge states in strained honeycomb lattices
• Quantum state transfer via acoustic edge states in a 2D optomechanical array
• Chiral phonons in honeycomb sublattice of layered CoSn-like compounds
• Optomechanical Kerker effect
• Breakdown of Conventional Winding Number Calculation in One-Dimensional Lattices with Interactions Beyond Nearest Neighbors
• Prethermalization and nonreciprocal phonon transport in a levitated optomechanical array
• Topological Node-Lines in Mechanical Metacrystals
• Strain and pseudo-magnetic fields in optical lattices from density-assisted tunneling
• Design of GaAs-based valley phononic crystals with multiple complete phononic bandgaps at ultra-high frequency
• Twist-induced magnon Landau levels in honeycomb magnets
• Generating Synthetic Magnetism via Floquet Engineering Auxiliary Qubits in Phonon-Cavity-Based Lattice
• Analytic solution to pseudo-Landau levels in strongly bent graphene nanoribbons
• Asynchronous Locking in Metamaterials of Fluids of Light and Sound
• Non-singular and singular flat bands in tunable acoustic metamaterials
• Topological band structure of surface acoustic waves on a periodically corrugated surface
• Dynamically Generated Synthetic Electric Fields for Photons
• An optomechanical platform with a 3-dimensional waveguide cavity
• Confining and channeling sound through coupled resonators
• Pseudo Landau levels, negative strain resistivity, and enhanced thermopower in twisted graphene nanoribbons
• Optomechanical circulator with a polaritonic microcavity
• Pseudo-magnetic fields in square lattices
• Non-Hermitian reshaping of high-order Landau modes
• Dynamical Generation of Synthetic Electric Fields for Photons in the Quantum Regime
• Synthetic magnetism for solitons in optomechanical array
• Quantized valley Hall response from local bulk density variations
• Optomechanics for quantum technologies