Tuning topological superconductivity in phase-controlled Josephson junctions with Rashba and Dresselhaus spin-orbit coupling

B Scharf, F Pientka, H Ren, A Yacoby, EM Hankiewicz - Physical Review B, 2019 - APS
Recently, topological superconductors based on Josephson junctions in two-dimensional
electron gases with strong Rashba spin-orbit coupling have been proposed as attractive …

Signatures of two-dimensional superconductivity emerging within a three-dimensional host superconductor

C Parra, FC Niestemski… - Proceedings of the …, 2021 - National Acad Sciences
Spatial disorder has been shown to drive two-dimensional (2D) superconductors to an
insulating phase through a superconductor–insulator transition (SIT). Numerical calculations …

Majorana corner flat bands in two-dimensional second-order topological superconductors

M Kheirkhah, Y Nagai, C Chen, F Marsiglio - Physical Review B, 2020 - APS
In this paper we find that confining a second-order topological superconductor with a
harmonic potential leads to a proliferation of Majorana corner modes. As a consequence …

Flat-band Majorana bound states in topological Josephson junctions

D Oshima, S Ikegaya, AP Schnyder, Y Tanaka - Physical Review Research, 2022 - APS
Nodal topological superconductors characterized by px-wave pairing symmetry host flat-
band Majorana bound states causing drastic anomalies in low-energy electromagnetic …

Theory of the proximity effect in two-dimensional unconventional superconductors with Rashba spin-orbit interaction

S Tamura, Y Tanaka - Physical Review B, 2019 - APS
We study the anomalous proximity effect in diffusive normal metal (DN)/unconventional
superconductor junctions, where the local density of states (LDOS) in the DN has a zero …

Emerging SYK physics in polaron system

CH Wu - arXiv preprint arXiv:2106.15095, 2021 - arxiv.org
The polaron is treated as a long-lived quasiparticle with slow momenta and current
relaxation in Fermi liquid phase. While in this paper, we discuss the possible realization of …

Emerging polaron and Wigner-Dyson distribution in many-body disordered system: Numerical evidence using a hidden variable based optimization algorithm for the …

CH Wu - arXiv preprint arXiv:2208.01303, 2022 - arxiv.org
We propose an algorithm base on the modulable hidden variables and step length, which is
inspired by the heuristic statistical physics and replica method, to study the effect of mutual …

Strong anomalous proximity effect from spin-singlet superconductors

S Ikegaya, J Lee, AP Schnyder, Y Asano - Physical Review B, 2021 - APS
The proximity effect from a spin-triplet px-wave superconductor to a dirty normal-metal has
been shown to result in various unusual electromagnetic properties, reflecting a cooperative …

Odd-parity pairing correlations in a -wave superconductor

J Lee, S Ikegaya, Y Asano - Physical Review B, 2021 - APS
We theoretically study the effects of spin-orbit interactions on the symmetry of a Cooper pair
in a spin-singlet d-wave superconductor and on the chiral property of the surface Andreev …

A Study on Majorana Zero Modes in Higher-Order Topological Superconductors

M Kheirkhah - 2021 - era.library.ualberta.ca
Over the past decade, the interplay between symmetry and topology in condensed matter
physics has not only deepened our understanding of matter by prompting a conceptual …