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Department of Physics and Astronomy
University of Mississippi

Events

Event Information:

  • Tue
    08
    Sep
    2020

    Colloquium: Geometric Phases in Acoustics

    4:00 pmZoom Meeting. See Below.

    Guancong Ma
    Department of Physics
    Hong Kong Baptist University

    Geometric Phases in Acoustics

    Geometric phase is a universal concept associated with the adiabatic evolution of states. It manifests in a wide diversity of physical systems, ranging from solid-state electronics to classical mechanics. Its profound implication makes it the cornerstone of numerous cutting-edge research, in particular, topological phases. The universality of the geometric phase means that it can be investigated using acoustic wave systems. The advancement of phononic crystals and the advent of acoustic metamaterials, in particular, laid the foundation for such endeavors. In this talk, I will discuss some of our recent attempts to study geometric phases and related phenomena in acoustic systems. Topics include: geometric phase mediated transport of sound vortex in a spiral waveguide, the realization of quantized Zak phase in a one-dimensional phononic crystal, topological acoustic pumping, and hybrid winding around an exceptional point.

    Join Zoom Meeting
    https://olemiss.zoom.us/j/213798950

    Meeting ID: 213 798 950