79 citations · 173 across the 9 of their papers we have counts for
9 papers
Disorder-robust trivial Majorana-like states from smooth confinement in chiral superconducting nanowires
Eslam Ahmed, Jorge Cayao, Yukio Tanaka
Near-zero-energy states in Majorana nanowires can arise from topologically trivial mechanisms such as smooth spatial inhomogeneity and disorder, making zero-energy pinning alone in…
Universal Transport Theory for Paired Fractional Quantum Hall States in the Quantum Point Contact Geometry
Eslam Ahmed, Ryoi Ohashi, Hiroki Isobe +2
Even-denominator fractional quantum Hall (FQH) states can be viewed as topological superconductors of composite fermions, supporting a charged chiral mode and …
Floquet engineering spin triplet states in unconventional magnets
Pei-Hao Fu, Sayan Mondal, Jun-Feng Liu +2
We consider unconventional magnets with and without spin-singlet -wave superconductivity and demonstrate the emergence of spin triplet states due to light drives. In particular,…
Anomalous proximity effect under Andreev and Majorana bound states
Eslam Ahmed, Yukio Tanaka, Jorge Cayao
We theoretically study the anomalous proximity effect in a ballistic normal metal/diffusive normal metal/superconductor junction based on Rashba semiconductor nanowire model. The s…
Odd-frequency pairing due to Majorana and trivial Andreev bound states
Eslam Ahmed, Shun Tamura, Yukio Tanaka +1
Majorana and trivial Andreev bound states are predicted to appear in superconductor-semiconductor hybrid systems, but their identification is still a challenging task. Here we cons…
Odd-frequency pairing of Bogoliubov quasiparticles in superconductor junction
Tatsuya Miki, Yukio Tanaka, Shun Tamura +1
We study a superconductor Josephson junction with a Bogoliubov Fermi surface, employing McMillan's Green's function technique. The low-energy degrees of freedom are described by sp…
Odd-frequency superconducting pairing due to multiple Majorana edge modes in driven topological superconductors
Eslam Ahmed, Shun Tamura, Yukio Tanaka +1
Majorana zero modes have been shown to be the simplest quasiparticles exhibiting pure odd-frequency pairing, an effect that has so far been theoretically established in the static…
Theory of Majorana zero modes in unconventional superconductors
Yukio Tanaka, Shun Tamura, Jorge Cayao
Majorana fermions are spin-1/2 neutral particles that are their own antiparticles and were initially predicted by Ettore Majorana in particle physics but their observation still re…
Enhancing the Josephson diode effect with Majorana bound states
Jorge Cayao, Naoto Nagaosa, Yukio Tanaka
We consider phase-biased Josephson junctions with spin-orbit coupling under external magnetic fields and study the emergence of the Josephson diode effect in the presence of Majora…