Zobrazeno 21 - 30
of 69 368
pro vyhledávání: '"Imamura, A"'
Publikováno v:
JHEP 12 (2023) 122
In string theories, interactions are exponentially suppressed for trans-Planckian space-like external momenta. We study a class of quantum field theories that exhibit this feature modeled after Witten's bosonic open string field theory, and discover
Externí odkaz:
http://arxiv.org/abs/2309.12926
We show theoretically and numerically that mode-locking is feasible with a coupled-cavity system with gain and loss, notably, without any natural saturable absorber. We highlight that in the vicinity of the exceptional point, system $Q$ exhibits subs
Externí odkaz:
http://arxiv.org/abs/2309.05912
Autor:
Jain, Richa N., Choudhary, R. K., Bhardwaj, Anil, Imamura, T., Sharma, Anshuman, Parikh, Umang M.
The solar inner corona is a region that plays a critical role in energizing the solar wind and propelling it to supersonic and supra-Alfvenic velocities. Despite its importance, this region remains poorly understood because of being least explored du
Externí odkaz:
http://arxiv.org/abs/2308.12596
Autor:
Hasegawa, Yuta, Imamura, Toshiyuki, Ina, Takuya, Onodera, Naoyuki, Asahi, Yuuichi, Idomura, Yasuhiro
Publikováno v:
2022 IEEE/ACM Workshop on Latest Advances in Scalable Algorithms for Large-Scale Heterogeneous Systems (ScalAH), pp. 10-17 (2022)
The ensemble data assimilation of computational fluid dynamics simulations based on the lattice Boltzmann method (LBM) and the local ensemble transform Kalman filter (LETKF) is implemented and optimized on a GPU supercomputer based on NVIDIA A100 GPU
Externí odkaz:
http://arxiv.org/abs/2308.03310
Autor:
Hasegawa, Yuta, Onodera, Naoyuki, Asahi, Yuuichi, Ina, Takuya, Imamura, Toshiyuki, Idomura, Yasuhiro
Publikováno v:
Fluid Dynamics Research, 55(6) 065501, 2023
We investigate the applicability of the data assimilation (DA) to large eddy simulations (LESs) based on the lattice Boltzmann method (LBM). We carry out the observing system simulation experiment of a two-dimensional (2D) forced isotropic turbulence
Externí odkaz:
http://arxiv.org/abs/2308.03972
We prove some theorems on decomposable continua. In particular, we prove; (i) the property of being a Wilder continuum is not a Whitney reversible property, (ii) inverse limits of D**-continua with surjective monotone upper semi-continuous bonding fu
Externí odkaz:
http://arxiv.org/abs/2307.06058
Autor:
Takahashi, Kazutoshi, Imamura, Masaki, Ikeda, Haruto, Koyama, Ryosuke, Yamamoto, Isamu, Azuma, Junpei
Two-dimensional band dispersion of (2$\times$2) superstructure with Bi grown on Ag(111), which has been urged as an ultraflat hexagonal bismuthene, is investigated using angle-resolved photoemission spectroscopy (ARPES). The (2$\times$2)-Bi superstru
Externí odkaz:
http://arxiv.org/abs/2307.01551
Autor:
Imamura, K., Mizukami, Y., Tanaka, O., Grasset, R., Konczykowski, M., Kurita, N., Tanaka, H., Matsuda, Y., Yamada, M. G., Hashimoto, K., Shibauchi, T.
Publikováno v:
Phys. Rev. X 14, 011045 (2024)
The excitations in the Kitaev spin liquid (KSL) can be described by Majorana fermions, which have characteristic field dependence of bulk gap and topological edge modes. In the high-field state of layered honeycomb magnet $\alpha$-RuCl$_3$, experimen
Externí odkaz:
http://arxiv.org/abs/2306.17380
Publikováno v:
European Signal Processing Conference, Sep. 2023, pp. 326--330
In this paper, we propose algorithms for handling non-integer strides in sampling-frequency-independent (SFI) convolutional and transposed convolutional layers. The SFI layers have been developed for handling various sampling frequencies (SFs) by a s
Externí odkaz:
http://arxiv.org/abs/2306.10718
Autor:
Kumazoe, Hiroyuki, Iwamitsu, Kazunori, Imamura, Masaki, Takahashi, Kazutoshi, Mototake, Yoh-ichi, Okada, Masato, Akai, Ichiro
We analyzed the X-ray photoemission spectra (XPS) of carbon 1s states in graphene and oxygen-intercalated graphene grown on SiC(0001) using Bayesian spectroscopy. To realize highly accurate spectral decomposition of the XPS spectra, we proposed a fra
Externí odkaz:
http://arxiv.org/abs/2306.03575