An easy-plane magnetic vortex imprints the exterior Ellis wormhole metric on Hund-coupled electrons, with a universal q-squared-over-J deflection law and a Berry phase that is maximal for odd winding and absent for even.
Space dependent Fermi velocity in strained graphene
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abstract
We resolve some apparent discrepancies between two different models for curved graphene: the one based on tight binding and elasticity theory, and the covariant approach based on quantum field theory in curved space. We demonstrate that strained or corrugated samples will have a space dependent Fermi velocity in either approach that can affect the interpretation of some experiments.
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cond-mat.mes-hall 1years
2026 1verdicts
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Wormhole Geometry from a Magnetic Vortex
An easy-plane magnetic vortex imprints the exterior Ellis wormhole metric on Hund-coupled electrons, with a universal q-squared-over-J deflection law and a Berry phase that is maximal for odd winding and absent for even.