Hawking fragmentation and Hawking attenuation in Weyl semimetals

We study black and white hole analogs in Weyl semimetals with inhomogeneous 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...

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Main Authors: Daniel Sabsovich, Paul Wunderlich, Victor Fleurov, Dmitry I. Pikulin, Roni Ilan, Tobias Meng
Format: Article
Language:English
Published: American Physical Society 2022-01-01
Series:Physical Review Research
Online Access:http://doi.org/10.1103/PhysRevResearch.4.013055
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author Daniel Sabsovich
Paul Wunderlich
Victor Fleurov
Dmitry I. Pikulin
Roni Ilan
Tobias Meng
author_facet Daniel Sabsovich
Paul Wunderlich
Victor Fleurov
Dmitry I. Pikulin
Roni Ilan
Tobias Meng
author_sort Daniel Sabsovich
collection DOAJ
description We study black and white hole analogs in Weyl semimetals with inhomogeneous 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 wave packets by the analog event horizon. These phenomena depend on an analog Hawking temperature and can be measured in metamaterials and solids, as we confirm by numerical simulations.
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spelling doaj.art-59a4e86f4117478e8b558e7a173d2b372024-04-12T17:17:27ZengAmerican Physical SocietyPhysical Review Research2643-15642022-01-014101305510.1103/PhysRevResearch.4.013055Hawking fragmentation and Hawking attenuation in Weyl semimetalsDaniel SabsovichPaul WunderlichVictor FleurovDmitry I. PikulinRoni IlanTobias MengWe study black and white hole analogs in Weyl semimetals with inhomogeneous 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 wave packets by the analog event horizon. These phenomena depend on an analog Hawking temperature and can be measured in metamaterials and solids, as we confirm by numerical simulations.http://doi.org/10.1103/PhysRevResearch.4.013055
spellingShingle Daniel Sabsovich
Paul Wunderlich
Victor Fleurov
Dmitry I. Pikulin
Roni Ilan
Tobias Meng
Hawking fragmentation and Hawking attenuation in Weyl semimetals
Physical Review Research
title Hawking fragmentation and Hawking attenuation in Weyl semimetals
title_full Hawking fragmentation and Hawking attenuation in Weyl semimetals
title_fullStr Hawking fragmentation and Hawking attenuation in Weyl semimetals
title_full_unstemmed Hawking fragmentation and Hawking attenuation in Weyl semimetals
title_short Hawking fragmentation and Hawking attenuation in Weyl semimetals
title_sort hawking fragmentation and hawking attenuation in weyl semimetals
url http://doi.org/10.1103/PhysRevResearch.4.013055
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