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DTSTAMP:20260425T210135Z
UID:656f10a836a9b329759218@ist.ac.at
DTSTART:20240130T110000
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DESCRIPTION:Speaker: Alberto Bordin\nhosted by Georgios Katsaros\nAbstract:
  Majorana bound states are non-abelian excitations predicted to emerge at 
 the edges of topological superconductors. A toy model of a one-dimensional
  chain hosting such states was proposed by Kitaev [1] and can be implement
 ed in quantum dots coupled by superconductors [2]. Remarkably\, a minimal 
 chain of just two sites can already host Majorana states [3] and was recen
 tly realized experimentally [4]. However\, two-site Kitaev chains need fin
 e-tuning to a sweet spot and are thus not topologically protected. In this
  work\, we realise a three-site Kitaev chain device [5] and show signature
 s of Majorana states with increased protection.[1] A. Y. Kitaev\, Physics-
 Uspekhi 44\, 131 (2001)\, cond-mat/0010440.[2] J. D. Sau and S. D. Sarma\,
  Nature Communications 3\, 964 (2012)\, 1111.6600.[3] M. Leijnse and K. Fl
 ensberg\, Physical Review B 86\, 134528 (2012)\, 1207.4299.[4] T. Dvir\, G
 . Wang\, N. van Loo\, C.-X. Liu\, G. P. Mazur\, A. Bordin\, S. L. Ten Haaf
 \, J.-Y. Wang\,D. van Driel\, F. Zatelli\, et al.\, Nature 614\, 445 (2023
 ).[5] A. Bordin\, X. Li\, D. van Driel\, J. C. Wolff\, Q. Wang\, S. L. ten
  Haaf\, G. Wang\, N. van Loo\,L. P. Kouwenhoven\, and T. Dvir\, arXiv prep
 rint arXiv:2306.07696 (2023).
LOCATION:Office Bldg West / Ground floor / Foyer seminar room (I21.EG.128)\
 , ISTA
ORGANIZER:swiddman@ist.ac.at
SUMMARY:Alberto Bordin: Majorana states in a three-site Kitaev chain
URL:https://talks-calendar.ista.ac.at/events/4642
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