Hawking fragmentation and Hawking attenuation in Weyl semimetals
- URL: http://arxiv.org/abs/2106.14553v3
- Date: Wed, 3 Nov 2021 08:32:49 GMT
- Title: Hawking fragmentation and Hawking attenuation in Weyl semimetals
- Authors: Daniel Sabsovich and Paul Wunderlich and Victor Fleurov and Dmitry I.
Pikulin and Roni Ilan and Tobias Meng
- Abstract summary: We study black and white hole analogues in Weyl semimetals with inhomogenous nodal tilts.
We study how the presence of a microscopic lattice, giving rise to low-energy fermion doubler states at large momenta, affects the analogy between Weyl Hamiltonians and general relativity.
- Score: 0.0
- License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
- Abstract: We study black and white hole analogues in Weyl semimetals with inhomogenous
nodal tilts. We study how the presence of a microscopic lattice, giving rise to
low-energy fermion doubler states at large momenta that are not present for
elementary particles, affects the analogy between Weyl Hamiltonians and general
relativity. Using a microscopic tight-binding lattice model, we find the
doubler states to give rise to Hawking fragmentation and Hawking attenuation of
wavepackets by the analogue event horizon. These phenomena depend on an
analogue Hawking temperature, and can be measured in metamaterials and solids,
as we confirm by numerical simulations.
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