Zobrazeno 1 - 10
of 65
pro vyhledávání: '"Suwa, Hidemaro"'
Autor:
Yamada, Masahiko G., Sanno, Takumi, Takahashi, Masahiro O., Akagi, Yutaka, Suwa, Hidemaro, Fujimoto, Satoshi, Udagawa, Masafumi
The density matrix renormalization group (DMRG) is a celebrated tensor network algorithm, which computes the ground states of one-dimensional quantum many-body systems very efficiently. Here we propose an improved formulation of continuous tensor net
Externí odkaz:
http://arxiv.org/abs/2212.13267
We study the BCS-BEC crossover phenomenon of triplet exciton condensation using a half-filled bilayer Hubbard model. We calculate the dynamical spin structure factor and the exciton wave function on the phase boundary between the antiferromagneticall
Externí odkaz:
http://arxiv.org/abs/2209.07178
Autor:
Suwa, Hidemaro
The choice of the transition kernel essentially determines the performance of the Markov chain Monte Carlo method. Despite the importance of kernel choice, guiding principles for optimal kernels have not been established. We here propose a rejection-
Externí odkaz:
http://arxiv.org/abs/2208.03935
Autor:
Suwa, Hidemaro
Publikováno v:
Phys. Rev. E 106, 055306 (2022)
Nonreversible Markov chains can outperform reversible chains in the Markov chain Monte Carlo method. Lifting is a versatile approach to introducing net stochastic flow in state space and constructing a nonreversible Markov chain. We present here an a
Externí odkaz:
http://arxiv.org/abs/2206.13881
Autor:
Yang, Junyi, Suwa, Hidemaro, Meyers, Derek, Zhang, Han, Horak, Lukas, Wang, Zhaosheng, Fabbris, Gilberto, Choi, Yongseong, Karapetrova, Jenia, Kim, Jong-Woo, Haskel, Daniel, Ryan, Philip J., Dean, M. P. M., Hao, Lin, Liu, Jian
We investigate an experimental toy-model system of a pseudospin-half square-lattice Hubbard Hamiltonian in [(SrIrO3)1/(CaTiO3)1] to include both nontrivial complex hopping and moderate electronic correlation. While the former induces electronic Berry
Externí odkaz:
http://arxiv.org/abs/2206.01392
Autor:
Gen, Masaki, Suwa, Hidemaro
Publikováno v:
Phys. Rev. B 105, 174424 (2022)
We investigate the effect of spin-lattice coupling (SLC) on the magnetic properties of the classical kagome-lattice Heisenberg antiferromagnet (KHAF) using improved Monte Carlo updates. The lattice modes are represented by Einstein site phonons, whic
Externí odkaz:
http://arxiv.org/abs/2202.09077
Autor:
Suwa, Hidemaro
Publikováno v:
In Physica A: Statistical Mechanics and its Applications 1 January 2024 633
Publikováno v:
Phys. Rev. Research 3, 013224 (2021)
We investigate the nature of the magnetic excitations of a bilayer single-orbital Hubbard model in the intermediate-coupling regime. This model exhibits a quantum phase transition (QPT) between a paramagnetic (PM) and an insulating antiferromagnetic
Externí odkaz:
http://arxiv.org/abs/2103.12956
Publikováno v:
J. Phys. Soc. Jpn. 90, 093001 (2021)
Integrable systems have provided various insights into physical phenomena and mathematics. The way of constructing many-body integrable systems is limited to few ansatzes for the Lax pair, except for highly inventive findings of conserved quantities.
Externí odkaz:
http://arxiv.org/abs/2103.00372