Workshop book - Physikzentrum der RWTH Aachen - RWTH Aachen ...
Workshop book - Physikzentrum der RWTH Aachen - RWTH Aachen ...
Workshop book - Physikzentrum der RWTH Aachen - RWTH Aachen ...
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Posters Tuesday February 5<br />
Poster 25:<br />
Majorana modes and complex band structure of quantum wires<br />
Llorens Serra<br />
We describe Majorana edge states of a semi-infinite wire using the complex<br />
band structure approach. In this method the edge state at a given energy is<br />
built as a superposition of evanescent waves. It is shown that the superposition<br />
can not always satisfy the required boundary condition, thus restricting<br />
the existence of edge modes. We discuss purely 1D and 2D systems, focussing<br />
in the latter case on the effect of the Rashba mixing term. We also review<br />
recent results on the calculation of Majorana modes in finite systems and of<br />
the linear transport within a coupled-channels model.<br />
References:<br />
[1] Majorana modes and complex band structure of quantum wires, L. Serra,<br />
arXiv:1210.4817<br />
[2] Transport through Majorana nanowires attached to normal leads, J.S.<br />
Lim, R. Lopez and L. Serra, New J. Phys. 14, 083020 (2012).<br />
[3] Magnetic field instability of Majorana modes in multiband semiconductor<br />
wires, J.S. Lim, L. Serra, R. Lopez and R. Aguado, Phys. Rev. B 86,<br />
121103(R) (2012).<br />
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