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Experimental Realization of Synthetic Magnonic Lattice via Floquet Engineering

Amin Pishehvar, Jayakrishnan M. P. Nair, Zhaoyou Wang, Zixin Yan, Yu Jiang, Liang Jiang, Benedetta Flebus, Xufeng Zhang

Featured July 2, 2026

Original Paper

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Simply

By wiggling a magnetic field very fast, the authors made tiny magnetic waves in a crystal talk to each other in a new way, creating a virtual extra dimension for processing information without needing a bigger device.

In depth
The paper experimentally demonstrates a synthetic dimension in a magnonic system by using Floquet engineering to couple discrete magnon resonances in the frequency domain. This approach allows for electronically tunable interactions between modes within a single yttrium iron garnet (YIG) device, creating a reconfigurable mode-space lattice that supports complex dynamics like Bloch oscillation without increasing the physical device size.

Key Takeaways

  • 1
    Experimental realization of a synthetic dimension in magnonics, enabling high-dimensional physics in a compact device.
  • 2
    Floquet engineering provides electronically tunable coupling between discrete magnon modes in the frequency domain.
  • 3
    Demonstration of spectral Bloch oscillations, a hallmark of coherent control and information exchange in synthetic dimensions.

Conceptual Flow

HIGH LEVEL
1
Building a Virtual Dimension

The scientists made a small crystal act like it had more space by making its internal vibrations connect in a special way.

Small Crystal
Wiggle Field
Connect Vibrations
Virtual Dimension
2
New Ways to Control Waves

This virtual space allowed them to precisely control how the magnetic waves move and interact, like making them bounce back and forth.

Virtual Dimension
Magnetic Waves
Control Movement
Predictable Wave Dance