211 citations · 1.4k across the 32 of their papers we have counts for
32 papers
Drinfeld realization of the centrally extended Yangian algebra with the manifest coproducts
Takuya Matsumoto
The Lie superalgebra is recognized as a pretty special one in both mathematics and theoretical physics. In this paper, we present the Drinfeld realization of…
Essential model parameters for nonreciprocal magnons in multisublattice systems
Satoru Hayami, Takuya Matsumoto
We theoretically investigate the microscopic conditions for emergent nonreciprocal magnons toward unified understanding on the basis of a microscopic model analysis. We show that t…
Nonreciprocal magnon excitations by the Dzyaloshinskii-Moriya interaction on the basis of bond magnetic toroidal multipoles
Takuya Matsumoto, Satoru Hayami
The microscopic conditions for the emergence of nonreciprocal magnon excitations in noncentrosymmetric magnets are theoretically investigated. We show that asymmetric magnon excita…
Nonreciprocal Magnon by Symmetric Anisotropic Exchange Interaction in Honeycomb Antiferromagnet
Takuya Matsumoto, Satoru Hayami
We investigate a microscopic origin of nonreciprocal magnon that is distinct from the Dzyaloshinskii-Moriya interaction in a honeycomb antiferromagnet. The key ingredient is a symm…
Classifying topological sector via machine learning
Masakiyo Kitazawa, Takuya Matsumoto, Yasuhiro Kohno
We employ a machine learning technique for an estimate of the topological charge of gauge configurations in SU(3) Yang-Mills theory in vacuum. As a first trial, we feed the fou…
Classifying Topological Charge in SU(3) Yang-Mills Theory with Machine Learning
Takuya Matsumoto, Masakiyo Kitazawa, Yasuhiro Kohno
We apply a machine learning technique for identifying the topological charge of quantum gauge configurations in four-dimensional SU(3) Yang-Mills theory. The topological charge den…
Kinetic theory for a simple modeling of phase transition: Dynamics out of local equilibrium
Shigeru Takata, Takuya Matsumoto, Anna Hirahara +1
This is a continuation of the previous work (Takata & Noguchi, J. Stat. Phys., 2018) that introduces the presumably simplest model of kinetic theory for phase transition. Here, mai…
Explicit examples of DIM constraints for network matrix models
Hidetoshi Awata, Hiroaki Kanno, Takuya Matsumoto +5
Dotsenko-Fateev and Chern-Simons matrix models, which describe Nekrasov functions for SYM theories in different dimensions, are all incorporated into network matrix models with the…
Chiral Unitary Quantum Phase Transition in 2H-FeTaSe
Takuya Kanno, Takuya Matsumoto, Koichi Ichimura +2
We have observed a metal-insulator transition of a quasi-two dimensional electronic system in transition metal dichalcogenide -TaSe caused by doping iron. The sheet resista…
Towards the gravity/CYBE correspondence beyond integrability -- Yang-Baxter deformations of
P. Marcos Crichigno, Takuya Matsumoto, Kentaroh Yoshida
Yang-Baxter sigma models, proposed by Klimcik and Delduc-Magro-Vicedo, have been recognized as a powerful framework for studying integrable deformations of two-dimensional non-line…
Strong Coupling Superconductivity in the Vicinity of the Structural Quantum Critical Point in (CaSr)RhSn
Wing Chi Yu, Yiu Wing Cheung, Paul J. Saines +5
The family of the superconducting quasi-skutterudites (CaSr)RhSn features a structural quantum critical point at , around which a dome-shaped va…
Yang-Baxter deformations of Minkowski spacetime
Takuya Matsumoto, Domenico Orlando, Susanne Reffert +2
We study Yang-Baxter deformations of 4D Minkowski spacetime. The Yang-Baxter sigma model description was originally developed for principal chiral models based on a modified classi…
Schrödinger geometries arising from Yang-Baxter deformations
Takuya Matsumoto, Kentaroh Yoshida
We present further examples of the correspondence between solutions of type IIB supergravity and classical -matrices satisfying the classical Yang-Baxter equation (CYBE). In the…
Yang-Baxter sigma models based on the CYBE
Takuya Matsumoto, Kentaroh Yoshida
It is known that Yang-Baxter sigma models provide a systematic way to study integrable deformations of both principal chiral models and symmetric coset sigma models. In the origina…
Yang-Baxter deformations and string dualities
Takuya Matsumoto, Kentaroh Yoshida
We further study integrable deformations of the AdSS superstring by following the Yang-Baxter sigma model approach with classical -matrices satisfying the classica…
Integrable deformations of the AdSS superstring and the classical Yang-Baxter equation -- Towards the gravity/CYBE correspondence --
Takuya Matsumoto, Kentaroh Yoshida
Based on the formulation of Yang-Baxter sigma models developed by Klimcik and Delduc-Magro-Vicedo, we explain that various deformations of type IIB superstring on AdSS$^5…
Deformations of as Yang-Baxter sigma models
P. Marcos Crichigno, Takuya Matsumoto, Kentaroh Yoshida
We consider a family of deformations of T^{1,1} in the Yang-Baxter sigma model approach. We first discuss a supercoset description of T^{1,1}, which makes manifest the full symmetr…
Representations of centrally extended Lie superalgebra
Takuya Matsumoto, Alexander Molev
The symmetries provided by representations of the centrally extended Lie superalgebra are known to play an important role in the spin chain models originated…
Lunin-Maldacena backgrounds from the classical Yang-Baxter equation -- Towards the gravity/CYBE correspondence
Takuya Matsumoto, Kentaroh Yoshida
We consider γ-deformations of the AdS_5xS^5 superstring as Yang-Baxter sigma models with classical r-matrices satisfying the classical Yang-Baxter equation (CYBE). An essential poi…
Integrability of classical strings dual for noncommutative gauge theories
Takuya Matsumoto, Kentaroh Yoshida
We derive the gravity duals of noncommutative gauge theories from the Yang-Baxter sigma model description of the AdS_5xS^5 superstring with classical r-matrices. The corresponding…
A Jordanian deformation of AdS space in type IIB supergravity
Io Kawaguchi, Takuya Matsumoto, Kentaroh Yoshida
We consider a Jordanian deformation of the AdS_5xS^5 superstring action by taking a simple R-operator which satisfies the classical Yang-Baxter equation. The metric and NS-NS two-f…
Jordanian deformations of the AdS_5xS^5 superstring
Io Kawaguchi, Takuya Matsumoto, Kentaroh Yoshida
We consider Jordanian deformations of the AdS_5xS^5 superstring action. The deformations correspond to non-standard q-deformation. In particular, it is possible to perform partial…
Schrodinger Sigma Models and Jordanian Twists
Io Kawaguchi, Takuya Matsumoto, Kentaroh Yoshida
We proceed to study the integrable structures of two-dimensional non-linear sigma models defined on three-dimensional Schrodinger spacetimes. We show that anisotropic Lax pairs are…
Secret Symmetries in AdS/CFT
Marius de Leeuw, Takuya Matsumoto, Sanefumi Moriyama +2
We discuss special quantum group (secret) symmetries of the integrable system associated to the AdS/CFT correspondence. These symmetries have by now been observed in a variety of f…