Zobrazeno 1 - 10
of 5 383
pro vyhledávání: '"Takemori A"'
Autor:
Namura, Nobuo, Takemori, Sho
Real-world optimization problems often involve complex objective functions with costly evaluations. While Bayesian optimization (BO) with Gaussian processes is effective for these challenges, it suffers in high-dimensional spaces due to performance d
Externí odkaz:
http://arxiv.org/abs/2412.11456
Publikováno v:
Physical Review B 110, 184518 (2024)
We investigate the non-Hermitian (NH) attractive Fermi-Hubbard model with asymmetric hopping and complex-valued interactions, which can be realized by collective one-body loss and two-body loss. By means of the NH BCS theory, we find that the weak as
Externí odkaz:
http://arxiv.org/abs/2406.16482
We propose introducing an extended Hubbard Hamiltonian derived via the ab initio downfolding method, which was originally formulated for periodic materials, towards efficient quantum computing of molecular electronic structure calculations. By utiliz
Externí odkaz:
http://arxiv.org/abs/2404.01623
Autor:
Ramasubramanian, Shrinivas, Rangwani, Harsh, Takemori, Sho, Samanta, Kunal, Umeda, Yuhei, Radhakrishnan, Venkatesh Babu
The rise in internet usage has led to the generation of massive amounts of data, resulting in the adoption of various supervised and semi-supervised machine learning algorithms, which can effectively utilize the colossal amount of data to train model
Externí odkaz:
http://arxiv.org/abs/2403.18301
The reduced density matrix (RDM) is crucial in quantum many-body systems for understanding physical properties, including all local physical quantity information. This study aims to minimize various error constraints that causes challenges in higher-
Externí odkaz:
http://arxiv.org/abs/2312.17452
Autor:
Iijima, Naoki, Imamura, Satoshi, Morita, Mikio, Takemori, Sho, Kasagi, Akihiko, Umeda, Yuhei, Yoshida, Eiji
Variational quantum eigensolver (VQE) is a hybrid quantum-classical algorithm designed for noisy intermediate-scale quantum (NISQ) computers. It is promising for quantum chemical calculations (QCC) because it can calculate the ground-state energy of
Externí odkaz:
http://arxiv.org/abs/2311.09634
Autor:
Fujiwara, Hirokazu, Terashima, Kensei, Otsuki, Junya, Takemori, Nayuta, Jeschke, Harald O., Wakita, Takanori, Yano, Yuko, Hosoda, Wataru, Kataoka, Noriyuki, Teruya, Atsushi, Kakihana, Masashi, Hedo, Masato, Nakama, Takao, Ōnuki, Yoshichika, Yaji, Koichiro, Harasawa, Ayumi, Kuroda, Kenta, Shin, Shik, Horiba, Koji, Kumigashira, Hiroshi, Muraoka, Yuji, Yokoya, Takayoshi
Publikováno v:
Physical Review B 106, 085114 (2022)
The spin-dependent band structure of CoS$_2$ which is a candidate for a half-metallic ferromagnet was investigated by both spin- and angle-resolved photoemission spectroscopy and theoretical calculations, in order to reappraise the half-metallicity a
Externí odkaz:
http://arxiv.org/abs/2310.07274
Publikováno v:
Phys. Rev. Res. 5, 043164 (2023)
We theoretically study the real-space distribution of the supercurrent that flows under a uniform vector potential in a two-dimensional quasiperiodic structure. This is done by considering the attractive Hubbard model on the quasiperiodic Ammann-Been
Externí odkaz:
http://arxiv.org/abs/2310.03484
Publikováno v:
Physical Review B 109, L060501 (2024)
We study the non-Hermitian fermionic superfluidity subject to dissipation of Cooper pairs on a honeycomb lattice, for which we analyze the attractive Hubbard model with a complex-valued interaction. Remarkably, we demonstrate the emergence of the dis
Externí odkaz:
http://arxiv.org/abs/2309.16191
Autor:
Ichikawa, Tsubasa, Hakoshima, Hideaki, Inui, Koji, Ito, Kosuke, Matsuda, Ryo, Mitarai, Kosuke, Miyamoto, Koichi, Mizukami, Wataru, Mizuta, Kaoru, Mori, Toshio, Nakano, Yuichiro, Nakayama, Akimoto, Okada, Ken N., Sugimoto, Takanori, Takahira, Souichi, Takemori, Nayuta, Tsukano, Satoyuki, Ueda, Hiroshi, Watanabe, Ryo, Yoshida, Yuichiro, Fujii, Keisuke
Publikováno v:
Nat. Rev. Phys. 6, 345 (2024)
Quantum computers (QCs), which work based on the law of quantum mechanics, are expected to be faster than classical computers in several computational tasks such as prime factoring and simulation of quantum many-body systems. In the last decade, rese
Externí odkaz:
http://arxiv.org/abs/2307.16130