Berlin 2015 – wissenschaftliches Programm

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TT: Fachverband Tiefe Temperaturen

TT 103: Transport: Poster Session

TT 103.55: Poster

Donnerstag, 19. März 2015, 15:00–18:00, Poster B

Floquet engineering of long-range p-wave superconductivity — •M. Benito¹, A. Gomez-León^1,2,3, V. M. Bastidas⁴, T. Brandes⁴, and G. Platero¹ — ¹Instituto de Ciencia de Materiales, CSIC, Cantoblanco, Madrid E-28049, Spain — ²Department of Physics & Astronomy, University of British Columbia, Vancouver, BC, Canada V6T 1Z1 — ³Pacific Institute of Theoretical Physics, Vancouver, BC, Canada V6T 1Z1 — ⁴Institut fur Theoretische Physik, Technische Universität Berlin, Hardenbergstrasse 36, 10623 Berlin, Germany

Floquet Majorana fermions appear as steady states at the boundary of time-periodic topological phases of matter. In this work, we theoretically study the main features of these exotic topological phases in the periodically driven one-dimensional Kitaev model. By controlling the ac fields, we can predict topological phase transitions that should give rise to signatures of Majorana states in experiments. Moreover, the knowledge of the time dependence of these Majorana states allows one to manipulate them. Our work contains a complete analysis of the monochromatic driving in different frequency regimes.

[1] M. Benito, A. Gómez-León, V. M. Bastidas, T. Brandes, and G. Platero, Phys. Rev. B 90, 205127 (2014).

[2] L. Jiang et al., Phys. Rev. Lett. 106, 220402 (2011).

[3] M. Thakurathi, A. A. Patel, D. Sen, and A. Dutta, Phys. Rev. B 88, 155133 (2013).