Condensed Matters retweetledi

Can the second Chern number be realized in a two-dimensional plane? Yes, it can - you just need to curve the plane!
Our work on "Hyperbolic Non-Abelian Semimetal" about a 2D nodal semimetal stabilized by second Chern number just appeared in @PhysRevLett.
journals.aps.org/prl/abstract/1…

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