Search Results - "Tohyama, Takami"

Antiphase Oscillations in the Time-Resolved Spin Structure Factor of a Photoexcited Mott Insulator by Tsutsui, Kenji, Shinjo, Kazuya, Tohyama, Takami

“…Motivated by the recent development of time-resolved resonant-inelastic x-ray scattering (TRRIXS) in photoexcited antiferromagnetic Mott insulators, we…”
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Recent Progress in Physics of High-Temperature Superconductors by Tohyama, Takami

“…One hundred years after the discovery of superconductivity, we are now facing a new era that demands an increase in the superconducting transition temperature…”
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Gapless spin liquid in a square-kagome lattice antiferromagnet by Fujihala, Masayoshi, Morita, Katsuhiro, Mole, Richard, Mitsuda, Setsuo, Tohyama, Takami, Yano, Shin-ichiro, Yu, Dehong, Sota, Shigetoshi, Kuwai, Tomohiko, Koda, Akihiro, Okabe, Hirotaka, Lee, Hua, Itoh, Shinichi, Hawai, Takafumi, Masuda, Takatsugu, Sagayama, Hajime, Matsuo, Akira, Kindo, Koichi, Ohira-Kawamura, Seiko, Nakajima, Kenji

“…Observation of a quantum spin liquid (QSL) state is one of the most important goals in condensed-matter physics, as well as the development of new spintronic…”
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Keldysh crossover in one-dimensional Mott insulators by Shinjo, Kazuya, Tohyama, Takami

“…Recent advancements in pulse laser technology have facilitated the exploration of nonequilibrium spectroscopy of electronic states in the presence of strong…”
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Majorana Zero-Energy Mode and Fractal Structure in Fibonacci–Kitaev Chain by Ghadimi, Rasoul, Sugimoto, Takanori, Tohyama, Takami

“…We theoretically study a Kitaev chain with a quasiperiodic potential, where the quasiperiodicity is introduced by a Fibonacci sequence. Based on an analysis of…”
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Spin Dynamics in the t – t ′– J Model: Dynamical Density-Matrix Renormalization Group Study by Tohyama, Takami, Sota, Shigetoshi, Yunoki, Seiji

“…The ground state of a hole-doped t–t′–J ladder with four legs favors a striped charge distribution. Spin excitation from the striped ground state is known to…”
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Finite-temperature properties of the Kitaev-Heisenberg models on kagome and triangular lattices studied by improved finite-temperature Lanczos methods by Morita, Katsuhiro, Tohyama, Takami

“…Frustrated quantum spin systems such as the Heisenberg and Kitaev models on various lattices have been known to exhibit various exotic properties not only at…”
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Quasi-fractionalization of edge spin in chirality-assisted cluster-based Haldane state on triangular spin tube by Sugimoto, Takanori, Tohyama, Takami

“…Fractionalization of quantum degrees of freedom holds the key to finding new phenomena in physics, e.g., the quark model in hadron physics and the spin-charge…”
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Topological and transport properties of Dirac fermions in an antiferromagnetic metallic phase of iron-based superconductors by Morinari, Takao, Kaneshita, Eiji, Tohyama, Takami

“…We investigate Dirac fermions in the antiferromagnetic metallic state of iron-based superconductors. Deriving an effective Hamiltonian for Dirac fermions, we…”
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Density-Matrix Renormalization Group Study of Kitaev–Heisenberg Model on a Triangular Lattice by Shinjo, Kazuya, Sota, Shigetoshi, Yunoki, Seiji, Totsuka, Keisuke, Tohyama, Takami

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Phenomenological Magnetic Model in Tsai-Type Approximants by Sugimoto, Takanori, Tohyama, Takami, Hiroto, Takanobu, Tamura, Ryuji

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Photoinduced in-gap excitations in the one-dimensional extended Hubbard model by Lu, Hantao, Shao, Can, Bonča, Janez, Manske, Dirk, Tohyama, Takami

“…We investigate the time evolution of optical conductivity in the half-filled one-dimensional extended Hubbard model driven by a transient laser pulse, by using…”
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Weyl superconductivity and quasiperiodic Majorana arcs in quasicrystals by Hori, Masahiro, Okugawa, Ryo, Tanaka, K., Tohyama, Takami

“…Weyl superconductivity is a topological phase in three-dimensional crystals in which the Weyl equation describes quasiparticle excitation near band-touching…”
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Machine Learning Phase Diagram in the Half-filled One-dimensional Extended Hubbard Model by Shinjo, Kazuya, Sasaki, Kakeru, Hase, Satoru, Sota, Shigetoshi, Ejima, Satoshi, Yunoki, Seiji, Tohyama, Takami

“…We demonstrate that supervised machine learning (ML) with entanglement spectrum can give useful information for constructing phase diagram in the half-filled…”
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Enhanced charge excitations in electron-doped cuprates by resonant inelastic x-ray scattering by Tohyama, Takami, Tsutsui, Kenji, Mori, Michiyasu, Sota, Shigetoshi, Yunoki, Seiji

“…Resonant inelastic x-ray scattering (RIXS) tuned for the Cu L edge is a possible tool to detect charge excitations in cuprate superconductors. We theoretically…”
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Possible Verification of Tilted Anisotropic Dirac Cone in α-(BEDT-TTF)2I3 Using Interlayer Magnetoresistance by MORINARI, Takao, HIMURA, Takahiro, TOHYAMA, Takami

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Glassy dynamics of the one-dimensional Mott insulator excited by a strong terahertz pulse by Shinjo, Kazuya, Sota, Shigetoshi, Tohyama, Takami

“…The elucidation of nonequilibrium states in strongly correlated systems holds the key to emergence of novel quantum phases. The nonequilibrium-induced…”
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Relaxation Dynamics of Photocarriers in One-Dimensional Mott Insulators Coupled to Phonons by Matsueda, Hiroaki, Sota, Shigetoshi, Tohyama, Takami, Maekawa, Sadamichi

“…We examine recombination processes of photocarriers in one-dimensional Mott insulators coupled to phonons. Performing density matrix renormalization group…”
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Exciton-assisted low-energy magnetic excitations in a photoexcited Mott insulator on a square lattice by Tsutsui, Kenji, Shinjo, Kazuya, Sota, Shigetoshi, Tohyama, Takami

“…The photoexcitation of a Mott insulator on a square lattice weakens the intensity of both single- and two-magnon excitations as observed in time-resolved…”
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Inelastic X-ray Scattering Studies of Electronic Excitations by Ishii, Kenji, Tohyama, Takami, Mizuki, Jun'ichiro

“…Inelastic x-ray scattering (IXS) has developed into one of the most powerful momentum-resolved spectroscopies. Especially in the last decade, it has achieved…”
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