Title	After a Weyl
Creator	Lu, Ling
Publisher	Banff International Research Station for Mathematical Innovation and Discovery
Date Issued	2017-09-13T16:14
Description	Weyl points are the key to non-trivial topological phenomena in 3D. I will give several examples: 1) Two Weyl points of same first Chern number form double-weyl points. Examples of double-weyl phonons will be shown in crystalline solids. 2) Two Weyl points of opposite first Chern number form 3D Dirac points. Glide-symmetry protected gapped phase with a single surface Dirac cone can be obtained by gapping 3D Dirac points. It has a Z2 invariant. 3) A Chern crystal of a full 3D gap can be obtained by gapping a Weyl pair. It is characterized by three first Chern numbers. 4) Coupling two Weyl points with helical modulations provides one-way fibers of second Chern number in 4D parameter space.
Extent	33 minutes
Subject	Mathematics; Partial differential equations; General topology
Type	Moving Image
File Format	video/mp4
Language	eng
Notes	Author affiliation: Instiute of Physics, Chinese Academy of Sciences
Series	BIRS Workshop Lecture Videos (Banff, Alta)
Date Available	2018-04-08
Provider	Vancouver : University of British Columbia Library
Rights	Attribution-NonCommercial-NoDerivatives 4.0 International
DOI	10.14288/1.0365245
URI	http://hdl.handle.net/2429/65173
Affiliation	Non UBC
Peer Review Status	Unreviewed
Scholarly Level	Faculty
Rights URI	http://creativecommons.org/licenses/by-nc-nd/4.0/
Aggregated Source Repository	DSpace

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