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Physics of Majorana nanowires beyond 1D models
11.01.2017, 13:30 bis 15:00
KIT, Campus Nord
Institute of Nanotechnology
Bldg. 640 Seminar room 0-167
Hermann-von-Helmholtz-Platz 1
76344 Eggenstein-Leopoldshafen

Talk given by

Prof.  Dr. Anton Akhmerov
Kavli institute of nanoscience 
TU Delft
Delft, The Netherlands

Semiconducting nanowires brought into contact with a
superconductor and subjected to an external magnetic field are one of
the two actively explored paths to creating Majoranas. Beautifully,
many physical phenomena occurring in these systems are captured by a
simple model containing only a single one-dimensional spinful electron
mode. However, while being amazingly useful for developing a basic
understanding of the system, this model can also be misleading because
of failing to capture several phenomena crucial for predicting the
properties of Majoranas. I will discuss two examples of such
phenomena: the orbital effect of magnetic field and the effect of
strong coupling to the superconductor. While the physical system beyond 1D
is too complex to be treatable analytically, I will use simple estimates and
symmetry analysis to build up the intuition about the phenomena we are studying.
Prof. Dr. Anton Akhmerov

TU Delft, The Netherlands
Dr. Igor Gornyi
Institute of Nanotechnology (INT)
Karlsruhe Institute of Technology (KIT)
E-Mail:igor gornyiVro0∂kit edu
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