75 citations · 231 across the 17 of their papers we have counts for
17 papers
Quantum Energy Teleportation and Entropy Change due to Feedback Control in One-Dimensional Heisenberg Model
Kanji Itoh, Yusuke Masaki, Hiroaki Matsueda
We study the quantum energy teleportation in a four-spin one-dimensional Heisenberg model. A local magnetic field is applied at the edge sites to control the degree of the ground-s…
Photoinduced pseudospin-wave emission from charge-density-wave domain wall with superconductivity
Yukihiro Matsubayashi, Yusuke Masaki, Hiroaki Matsueda
We study photoinduced dynamics triggered by an inhomogeneity due to competition between charge density waves (CDWs) and superconductivity. As a simple example, we consider the supe…
Non-Abelian Anyons and Non-Abelian Vortices in Topological Superconductors
Yusuke Masaki, Takeshi Mizushima, Muneto Nitta
Anyons are particles obeying statistics of neither bosons nor fermions. Non-Abelian anyons, whose exchanges are described by a non-Abelian group acting on a set of wave functions,…
Quasi-Particle Dynamics in Quasi-Periodic Ising Model with Temporally Fluctuating Transverse Fields
Kohei Ohgane, Yusuke Masaki, Hiroaki Matsueda
We study quasi-particle dynamics in a quasi-periodic Ising model with temporally fluctuating transverse fields. Specifically, we calculate the dynamical exponents of the standard d…
Spin-Nernst Effect in Time-Reversal-Invariant Topological Superconductors
Taiki Matsushita, Jiei Ando, Yusuke Masaki +3
We investigate the spin-Nernst effect in time-reversal invariant topological superconductors, and show that it provides a smoking-gun evidence for helical Cooper pairs. The spin-Ne…
Non-Abelian Half-Quantum Vortices in Topological Superfluids
Yusuke Masaki, Takeshi Mizushima, Muneto Nitta
superfluids realized in neutron stars are the largest topological quantum matters in our Universe. We establish the existence and stability of non-Abelian half-quantu…
Instabilities in monoaxial chiral magnets under a tilted magnetic field
Yusuke Masaki
We thoroughly study the zero temperature properties of monoaxial chiral spin systems under a tilted magnetic field. The magnetic phase diagram includes two kinds of continuous phas…
Microscopic description of axisymmetric vortices in superfluids
Yusuke Masaki, Takeshi Mizushima, Muneto Nitta
We study quantized vortices in superfluids using a microscopic theory for the first time. The theory is based on the Eilenberger equation to determine the order param…
Order and Disorder in the Magnetisation of the Chiral Crystal CrNbS
Gary W. Paterson, Tsukasa Koyama, Misako Shinozaki +9
Competing magnetic anisotropies in chiral crystals with Dzyaloshinskii Moriya exchange interactions can give rise to non-trivial chiral topological magnetisation configurations wit…
Chiral solitons in monoaxial chiral magnets in tilted magnetic field
Yusuke Masaki, Ryuya Aoki, Yoshihiko Togawa +1
We show that the stability (existence/absence) and interaction (repulsion/attraction) of chiral solitons in monoaxial chiral magnets can be varied by tilting the direction of magne…
Vortex charge and impurity effects based on quasiclassical theory
Yusuke Masaki
We investigate charge densities around the vortex cores of an s-wave and a chiral p-wave superconductor (SC) in two dimension within quasiclassical theory. We consider contribution…
Charged and uncharged vortices in quasiclassical theory
Yusuke Masaki, Yusuke Kato
The charging effect of a superconducting vortex core is very important for transport properties of superconducting vortices. The chiral p-wave superconductor, known as a topologica…
Fan-type spin structure in uni-axial chiral magnets
Misako Shinozaki, Shintaro Hoshino, Yusuke Masaki +4
We investigate the spin structure of a uni-axial chiral magnet near the transition temperatures in low fields perpendicular to the helical axis. We find a fan-type modulation struc…
Robust zero-energy bound states around a pair-density-wave vortex core in locally noncentrosymmetric superconductors
Yoichi Higashi, Yuki Nagai, Tomohiro Yoshida +2
We numerically investigate the electronic structures around a vortex core in a bilayer superconducting system, with s-wave pairing, Rashba spin-orbit coupling and Zeeman magnetic f…
Finite-Temperature Properties of Three-Dimensional Classical Chiral Helimagnets
Misako Shinozaki, Shintaro Hoshino, Yusuke Masaki +2
A three-dimensional chiral helimagnet is analyzed using a mean-field (MF) analysis and a classical Monte Carlo (MC) simulation at finite temperatures. We consider a Hamiltonian con…
Impurity Effects on Bound States in the Vortex Core of Topological S-wave Superconductor
Yusuke Masaki, Yusuke Kato
We study the impurity effects on the Caroli-de Gennes-Matricon (CdGM) states, particularly on the level spacings in a vortex core in topological s-wave superconductor (SC) by two m…
Impurity Effects on Caroli-de Gennes-Matricon Mode in a Vortex Core in Superconductors
Yusuke Masaki, Yusuke Kato
We develop a scheme of Gor'kov Green's functions to treat impurity effects on Caroli-de Gennes-Matricon (CdGM) mode in superconductors (SCs) by improving the Kopnin-Kravtsov scheme…