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Open Quantum Systems Decoherence

On the propagation of Dirac fermions in graphene with the strain-induced inhomogeneous Fermi velocity

arXiv
Authors: Alonso Contreras-Astorga, Vit Jakubsky, Alfredo Raya

Year

2019

Paper ID

14400

Status

Preprint

Abstract Read

~2 min

Abstract Words

76

Citations

N/A

Abstract

We consider systems described by the two-dimensional Dirac equation where the Fermi velocity is inhomogeneous as a consequence of mechanical deformations. We show that the mechanical deformations can lead to deflection and focusing of the wave packets. The analogy with known reflectionless quantum systems is pointed out. Furthermore, with the use of the qualitative spectral analysis, we discuss how inhomogeneous strains can be used to create waveguides for valley polarized transport of partially dispersionless wave packets.

Why This Paper Matters

  • This paper contributes to the Open Quantum Systems & Decoherence research area in the Quantum Articles archive.
  • It adds a 2019 reference point for readers tracking recent quantum research.
  • We consider systems described by the two-dimensional Dirac equation where the Fermi velocity is inhomogeneous as a consequence of mechanical deformations.

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References & Citation Signals

[1] DOI https://doi.org/arXiv:1912.00675 [2] arXiv https://arxiv.org/abs/1912.00675 [3] Publisher https://arxiv.org/abs/1912.00675

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