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[Fizinfo] BME Elméleti Fizika Tanszék szemináriuma


Chronological Thread 
  • From: tcsaba <tcsaba AT eik.bme.hu>
  • To: fizinfo AT lists.kfki.hu
  • Subject: [Fizinfo] BME Elméleti Fizika Tanszék szemináriuma
  • Date: Mon, 19 Feb 2018 08:15:57 +0100

M E G H Í V Ó - I N V I T A T I O N

Seminar Series of the Department of Theoretical Physics at the
Budapest University of Technology and Economics


Wataru Izumida
(Tohoku University)

Zero energy edge states in carbon nanotubes
with superconducting pairing


Recent study has shown emergence of Majorana quasiparticles as zero energy edge states in carbon nanotubes in proximity with a superconductor by tuning the system having a helical pair by applying magnetic field [1].
In this talk, I will show that, even in the absence of magnetic fields, zero energy edge states can also emerge in the nanotubes as a combined effect of curvature-induced Dirac point shift and strong superconducting coupling between nearest-neighbor sites [2]. These edge states exist in pair, thus they are in contrast to the Majorana quasiparticles [1].


[1] M. Marganska, L. Milz, W. Izumida, C. Strunk, M. Grifoni, arXiv:1711.03616.
[2] W. Izumida, L. Milz, M. Marganska, M. Grifoni, Phys. Rev. B 96, 125414 (2017)


Időpont: 2018. február 23. péntek, 10:15
Helyszín: BME Fizikai Intézet, Elméleti Fizika Tanszék,
Budafoki út 8. F-épület, III lépcsőház, szemináriumi szoba




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