Colloquium: Axial fields in phonic crystals
- Date
- May 20, 2019
- Time
- 4:30 PM - 5:30 PM
- Speaker
- Prof. Dr. Sebastian Huber
- Affiliation
- ETH Zürich, Dept. Theoretische Physik, Schweiz
- Series
- MPI-PKS Kolloquium
- Language
- en
- Main Topic
- Physik
- Other Topics
- Physik
- Description
- The elastic properties of materials are determined by a few material constants such as the Young’s modulus. Using super-structures one can effectively change these “constants”. In this way we obtain functionalities such as wave-guiding, acoustic lensing or programmable failure. I will show how topological band theory, known from the description of electrons in solids, provides us with a powerful design-principle for such mechanical metamaterials. Moreover, mechanical metamaterials offer a powerful platform for the study of fundamentally new phenomena that are hard to observe in other arenas. Here, I will highlight the first measurement of a quadrupole topological insulator in a silicon based metamaterial and the implementation of an axial gauge field in an acoustic Weyl system.
Last modified: Jun 24, 2019, 3:14:05 PM
Location
Max-Planck-Institut für Physik komplexer SystemeNöthnitzer Straße3801187Dresden
- Phone
- + 49 (0)351 871 0
- MPI-PKS
- Homepage
- http://www.mpipks-dresden.mpg.de
Organizer
Max-Planck-Institut für Physik komplexer SystemeNöthnitzer Straße3801187Dresden
- Phone
- + 49 (0)351 871 0
- MPI-PKS
- Homepage
- http://www.mpipks-dresden.mpg.de
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