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High-Temperature Majorana Zero Modes.
Phys Rev Lett
April 2022
Department of Physics and Astronomy, and Quantum Matter Institute, University of British Columbia, Vancouver, British Columbia, Canada V6T 1Z1.
We employ analytical and numerical approaches to show that unpaired Majorana zero modes can occur in cores of Abrikosov vortices at the interface between a three-dimensional topological insulator, such as Bi_{2}Se_{3}, and a twisted bilayer of high-T_{c} cuprate superconductor, such as Bi_{2}Sr_{2}CaCu_{2}O_{8+δ}. When the twist angle is close to 45° the latter has been predicted to form a fully gapped topological superconductor up to temperatures approaching its native T_{c}≃90 K. Majorana zero modes in these structures will persist up to unprecedented high temperatures and, depending on the quality of the interface, may be protected by gaps with larger magnitudes than other candidate systems.
View Article and Find Full Text PDFMoiré-Enabled Topological Superconductivity.
Nano Lett
January 2022
Department of Applied Physics, Aalto University, 00076 Aalto, Finland.
The search for artificial topological superconductivity has been limited by the stringent conditions required for its emergence. As exemplified by the recent discoveries of various correlated electronic states in twisted van der Waals materials, moiré patterns can act as a powerful knob to create artificial electronic structures. Here, we demonstrate that a moiré pattern between a van der Waals superconductor and a monolayer ferromagnet creates a periodic potential modulation that enables the realization of a topological superconducting state that would not be accessible in the absence of the moiré.
View Article and Find Full Text PDFMajorana vortex photons a form of entangled photons propagation through brain tissue.
J Biophotonics
October 2019
Institute for Ultrafast Spectroscopy and Lasers, Department of Physics, The City College of the City University of New York, New York, New York.
This paper extends the concept of entangled vector vortex beams as a form of Majorana-like photons. Majorana photon quasi particles are introduced and attributed to a class of entangled vector beams and show higher transmission. These photons and the antiphotons are identical.
View Article and Find Full Text PDFMajorana gets an iron twist.
Natl Sci Rev
March 2019
Institute of Physics, Chinese Academy of Sciences, China.
A twist on the Majorana fermion.
Science
July 2017
School of Physics and Astronomy, University of Minnesota, Minneapolis, MN, USA.
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