Browsing Facultad de Matemática, Astronomía, Física y Computación by Author "Usaj, Gonzalo"

Now showing items 1-4 of 4

    • Efectos de la radiación en las propiedades eléctricas del grafeno : estados topológicos de Floquet inducidos por láser 

      Pérez Piskunow, Pablo Matías (2015-12)
      Esta tesis está dedicada al estudio teórico del grafeno iluminado por un láser intenso. Nos enfocamos en efectos no perturbativos de la luz sobre el material, utilizando la teoría de Floquet. Mostramos cómo un láser puede ...

    • Floquet chiral edge states in graphene 

      Pérez Piskunow, Pablo Matías; Usaj, Gonzalo; Balseiro, Carlos A.; Foa Torres, Luis Eduardo Francisco (2014)
      We report on the emergence of laser-induced chiral edge states in graphene ribbons. Insights on the nature of these Floquet states is provided by an analytical solution which is complemented with numerical simulations of ...

    • Irradiated graphene as a tunable Floquet topological insulator 

      Usaj, Gonzalo; Pérez Piskunow, Pablo Matías; Foa Torres, Luis Eduardo Francisco; Balseiro, Carlos A. (2014)
      In the presence of a circularly polarized mid-infrared radiation graphene develops dynamical band gaps in its quasienergy band structure and becomes a Floquet insulator. Here, we analyze how topologically protected edge ...

    • Multiterminal conductance of a floquet topological insulator 

      Foa Torres, Luis Eduardo Francisco; Pérez Piskunow, Pablo Matías; Balseiro, Carlos A.; Usaj, Gonzalo (2014)
      We report on simulations of the dc conductance and quantum Hall response of a Floquet topological insulator using Floquet scattering theory. Our results reveal that laser-induced edge states lead to quantum Hall plateaus ...