209 citations · 1.5k across the 69 of their papers we have counts for
70 papers
Conditional value-at-risk under reward-penalty mechanism with applications to robust portfolio management
Jun Cai, Tiantian Mao, Zhiqiao Song
In this paper, we present robust portfolio selection models by incorporating a reward and penalty mechanism into portfolio management. We assume that the joint distribution of the…
Boundary Potential Method for Describing Electron Teleportation in an Interferometer with a Topological Superconductor
Kyosuke Mizuno, Yuto Takarabe, Yositake Takane
One-dimensional topological superconductors accommodate a pair of Majorana zero modes at their ends. In an interferometer containing such a topological superconductor, electron tra…
Josephson phase shift and diode effect due to the inverse spin Hall effect
Gen Tatara, Yositake Takane, Aurelien Manchon
We theoretically study the direct and inverse spin Hall effects in a superconductor-normal metal-uperconductor junction induced by a spin-orbit interaction that is invariant under…
Majorana Zero Mode Induced by a Screw Dislocation on the Surface of an Iron-based Superconductor
Naoki Otsuki, Yositake Takane
We propose a simple scenario to describe a dislocation-induced Majorana zero mode on the surface of an iron-based superconductor, using an illustrative model with a cylindrical hol…
Electron Transport along Screw Dislocations in a Strong Topological Insulator
Tatsuro Sakaguchi, Yositake Takane
In a three-dimensional strong topological insulator, gapless helical surface states appear everywhere on its surface. In the presence of a screw dislocation, gapless helical modes…
Bulk--boundary correspondence in a non-Hermitian quantum spin-Hall insulator
Chihiro Ishii, Yositake Takane
We focus on a scenario of non-Hermitian bulk--boundary correspondence that uses a topological invariant defined in a bulk geometry under a modified periodic boundary condition. Alt…