Zobrazeno 1 - 10
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pro vyhledávání: '"A. Okuyama"'
Autor:
Okuyama, Manaka, Ohzeki, Masayuki
We study the random-field Ising model on a Dyson hierarchical lattice, where the interactions decay in a power-law-like form, $J(r)\sim r^{-\alpha}$, with respect to the distance. Without a random field, the Ising model on the Dyson hierarchical latt
Externí odkaz:
http://arxiv.org/abs/2410.11515
Autor:
Okuyama, Yûsuke
For a rational function $\phi$ on $\mathbb{P}^1$ defined over an algebraically closed and complete non-archimedean non-trivially valued field $K$, we introduce the intrinsic reduction at each point in the Berkovich projective line and the directionwi
Externí odkaz:
http://arxiv.org/abs/2408.04415
Autor:
Okuyama, Kazumi
We consider the baby universe operator $\mathcal{B}_a$ in the double-scaled SYK (DSSYK) model, which creates a baby universe of size $a$. We find that $\mathcal{B}_a$ is written in terms of the transfer matrix $T$, and vice versa. In particular, the
Externí odkaz:
http://arxiv.org/abs/2408.03726
Autor:
Okuyama, Manaka, Ohzeki, Masayuki
The interpolation method is a powerful tool for rigorous analysis of mean-field spin glass models, both with and without dilution. In this study, we show that the interpolation method can be applied to Ising spin glass models in one dimension, such a
Externí odkaz:
http://arxiv.org/abs/2406.14857
Autor:
Okuyama, Manaka, Ohzeki, Masayuki
We studied nonsparsely diluted mean-field models that differ from sparsely diluted mean-field models, such as the Viana--Bray model. We prove that the free energy of nonsparsely diluted mean-field models coincides exactly with that of the correspondi
Externí odkaz:
http://arxiv.org/abs/2406.13245
Autor:
Okuyama, Manaka, Ohzeki, Masayuki
Publikováno v:
J. Phys. Soc. Jpn. 93, 104706 (2024)
The critical inverse temperature of the mean-field approximation establishes a lower bound of the true critical inverse temperature in a broad class of ferromagnetic spin models. This is referred to as the mean-field bound for the critical temperatur
Externí odkaz:
http://arxiv.org/abs/2406.12728
Autor:
Kino, Ryoko, Nagao, Sho, Akiyama, Takeru, Fujioka, Hiroyuki, Fujiwara, Tomomasa, Ishige, Tatsuhiro, Itabashi, Kosuke, Kajikawa, Shunsuke, Kaneta, Masashi, Mizuno, Masaya, Nakamura, Satoshi N., Nishi, Kotaro, Nishida, Ken, Okuyama, Kazuki, Oura, Fumiya, Tachibana, Koga, Toyama, Yuichi, Watanabe, Daigo
Publikováno v:
Nuclear Inst. and Methods in Physics Research, A, Volume 1070, 2025, Page 169992
A real-time beam profile monitoring system is proposed for GeV photon beams at the BM4 beamline of the Mikamine site, Research Center for Accelerator and Radioisotope Science (RARiS; previously known as ELPH) at Tohoku University. This monitoring sys
Externí odkaz:
http://arxiv.org/abs/2405.17904
Autor:
Okuyama, D., Bleuel, M., Ye, Q., Krzywon, J., Nagaosa, N., Kikkawa, A., Taguchi, Y., Tokura, Y., Reim, J. D., Nambu, Y., Sato, T. J.
Lattice formation of swirling textures is ubiquitous in solid-state materials, such as a magnetic skyrmion lattice in chiral magnets. In the magnetic skyrmion lattices, their moving states and dynamics under external perturbations are still unreveale
Externí odkaz:
http://arxiv.org/abs/2404.17505
Autor:
Okuyama, Kazumi
We continue our study of the doubled Hilbert space formalism of double-scaled SYK model initiated in [arXiv:2401.07403]. We show that the 1-particle Hilbert space introduced by Lin and Stanford in [arXiv:2307.15725] is related to the doubled Hilbert
Externí odkaz:
http://arxiv.org/abs/2404.02833
Autor:
Okuyama, K., Itabashi, K., Nagao, S., Nakamura, S. N., Suzuki, K. N., Gogami, T., Pandey, B., Tang, L., Bydžovský, P., Skoupil, D., Mart, T., Abrams, D., Akiyama, T., Androic, D., Aniol, K., Gayoso, C. Ayerbe, Bane, J., Barcus, S., Barrow, J., Bellini, V., Bhatt, H., Bhetuwal, D., Biswas, D., Camsonne, A., Castellanos, J., Chen, J-P., Chen, J., Covrig, S., Chrisman, D., Cruz-Torres, R., Das, R., Fuchey, E., Gnanvo, K., Garibaldi, F., Gautam, T., Gomez, J., Gueye, P., Hague, T. J., Hansen, O., Henry, W., Hauenstein, F., Higinbotham, D. W., Hyde, C. E., Kaneta, M., Keppel, C., Kutz, T., Lashley-Colthirst, N., Li, S., Liu, H., Mammei, J., Markowitz, P., McClellan, R. E., Meddi, F., Meekins, D., Michaels, R., Mihovilovič, M., Moyer, A., Nguyen, D., Nycz, M., Owen, V., Palatchi, C., Park, S., Petkovic, T., Premathilake, S., Reimer, P. E., Reinhold, J., Riordan, S., Rodriguez, V., Samanta, C., Santiesteban, S. N., Sawatzky, B., Širca, S., Slifer, K., Su, T., Tian, Y., Toyama, Y., Uehara, K., Urciuoli, G. M., Votaw, D., Williamson, J., Wojtsekhowski, B., Wood, S. A., Yale, B., Ye, Z., Zhang, J., Zheng, X.
In 2018, the E12-17-003 experiment was conducted at the Thomas Jefferson National Accelerator Facility (JLab) to explore the possible existence of an nnLambda state in the reconstructed missing mass distribution from a tritium gas target [K. N. Suzuk
Externí odkaz:
http://arxiv.org/abs/2403.01173