1. Home
  2. Research
  3. Independent Research Groups
  4. Kunst Research Group
  5. Publications

Publications

2021

PT symmetry-protected exceptional cones and analogue Hawking radiation

Marcus Stålhammar, Jorge Larana-Aragon, Lukas Rødland, Flore Kunst

arXiv: 2106.05030v1 (2021) | Preprint | PDF

We show that the exceptional surfaces of linear three-dimensional non-Hermitian parity-time-symmetric two-band models attain the form of topologically stable tilted exceptional cones. By relating the exceptional cones to energy cones of two-dimensional Hermitian parity-time-symmetric two-band models, we find a connection between the exceptional cone and the light cone of an observer in the vicinity of a Schwarzschild black hole. When the cone overtilts, light-like particle-antiparticle pairs are created resembling Hawking radiation. We also investigate dissipative features of the non-Hermitian Hamiltonian related to the latter and comment on potential realizations in laboratory setups.

Contact

Lise Meitner Research Group Flore Kunst

Max Planck Institute for the Science of Light
Staudtstr. 2
91058 Erlangen, Germany

flore.kunst@mpl.mpg.de

MPL Research Centers and Schools

© Max Planck Institute for the Science of Light

Data Collection

This website uses cookies to ensure you get the best experience on our website.

Get more info about used cookies
Cookie optin by Olli machts