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Journal Articles

$$alpha$$-clustering in atomic nuclei from first principles with statistical learning and the Hoyle state character

Otsuka, Takaharu; Abe, Takashi*; Yoshida, Toru*; Tsunoda, Yusuke*; Shimizu, Noritaka*; Itagaki, Naoyuki*; Utsuno, Yutaka; Vary, J. P.*; Maris, P.*; Ueno, Hideki*

Nature Communications (Internet), 13, p.2234_1 - 2234_10, 2022/04

 Times Cited Count:9 Percentile:95.34(Multidisciplinary Sciences)

no abstracts in English

Journal Articles

Ground-state properties of light $$4n$$ self-conjugate nuclei in ${it ab initio}$ no-core Monte Carlo shell model calculations with nonlocal $$NN$$ interactions

Abe, Takashi*; Maris, P.*; Otsuka, Takaharu*; Shimizu, Noritaka*; Utsuno, Yutaka; Vary, J. P.*

Physical Review C, 104(5), p.054315_1 - 054315_22, 2021/11

 Times Cited Count:7 Percentile:77.2(Physics, Nuclear)

no abstracts in English

Journal Articles

Monte Carlo shell model studies with massively parallel supercomputers

Shimizu, Noritaka*; Abe, Takashi*; Homma, Michio*; Otsuka, Takaharu*; Togashi, Tomoaki*; Tsunoda, Yusuke*; Utsuno, Yutaka; Yoshida, Toru*

Physica Scripta, 92(6), p.063001_1 - 063001_19, 2017/06

 Times Cited Count:24 Percentile:81.66(Physics, Multidisciplinary)

no abstracts in English

Journal Articles

Large-scale shell-model analysis of the neutrinoless $$betabeta$$ decay of $$^{48}$$Ca

Iwata, Yoritaka*; Shimizu, Noritaka*; Otsuka, Takaharu*; Utsuno, Yutaka; Men$'e$ndez, J.*; Homma, Michio*; Abe, Takashi*

Physical Review Letters, 116(11), p.112502_1 - 112502_6, 2016/03

AA2015-0865.pdf:0.45MB

 Times Cited Count:74 Percentile:94.56(Physics, Multidisciplinary)

no abstracts in English

Journal Articles

Large-scale shell-model studies for exotic nuclei; Probing shell evolution

Utsuno, Yutaka; Otsuka, Takaharu*; Shimizu, Noritaka*; Tsunoda, Yusuke*; Homma, Michio*; Abe, Takashi*; Mizusaki, Takahiro*; Togashi, Tomoaki*; Brown, B. A.*

Proceedings of International Conference on Nuclear Theory in the Supercomputing Era 2014 (NTSE 2014), p.29 - 34, 2016/00

no abstracts in English

Journal Articles

GPGPU application to the computation of Hamiltonian matrix elements between non-orthogonal Slater determinants in the Monte Carlo shell model

Togashi, Tomoaki*; Shimizu, Noritaka*; Utsuno, Yutaka; Abe, Takashi*; Otsuka, Takaharu*

Procedia Computer Science, 29, p.1711 - 1721, 2014/06

 Times Cited Count:1 Percentile:30.15

Computing Hamiltonian matrix elements between non-orthogonal Slater determinants is often needed for nuclear-structure calculations, and it is the most time-consuming part in many cases. In this paper, we demonstrate that utilizing GPGPU is an efficient way to perform this calculation. In our earlier study, we showed that the calculation of the Hamiltonian matrix elements between non-orthogonal Slater determinants is transformed into the multiplication of matrices. This method is useful for the GPGPU calculation because of less memory access compared to the usual method. We implement the GPGPU computation in the Monte Carlo shell-model code and measure the elapsed time. The resulting performance is over 0.6 TFLOPS for the GPU that has 1.13 TFLOPS peak performance. This method is particularly effective for large-scale calculations because higher efficiency is obtained for the calculation of larger model spaces.

Journal Articles

Recent shell-model results for exotic nuclei

Utsuno, Yutaka; Otsuka, Takaharu*; Shimizu, Noritaka*; Homma, Michio*; Mizusaki, Takahiro*; Tsunoda, Yusuke*; Abe, Takashi*

EPJ Web of Conferences, 66, p.02106_1 - 02106_8, 2014/03

 Times Cited Count:14 Percentile:96.87

no abstracts in English

Journal Articles

Efficient computation of Hamiltonian matrix elements between non-orthogonal Slater determinants

Utsuno, Yutaka; Shimizu, Noritaka*; Otsuka, Takaharu*; Abe, Takashi*

Computer Physics Communications, 184(1), p.102 - 108, 2013/01

 Times Cited Count:13 Percentile:62.22(Computer Science, Interdisciplinary Applications)

no abstracts in English

Journal Articles

Benchmarks of the full configuration interaction, Monte Carlo shell model, and no-core full configuration methods

Abe, Takashi*; Maris, P.*; Otsuka, Takaharu*; Shimizu, Noritaka*; Utsuno, Yutaka; Vary, J. P.*

Physical Review C, 86(5), p.054301_1 - 054301_18, 2012/11

AA2012-0120.pdf:1.12MB

 Times Cited Count:66 Percentile:94.75(Physics, Nuclear)

no abstracts in English

Journal Articles

New-generation of Monte Carlo shell model for the K computer era

Shimizu, Noritaka*; Abe, Takashi*; Tsunoda, Yusuke*; Utsuno, Yutaka; Yoshida, Toru*; Mizusaki, Takahiro*; Homma, Michio*; Otsuka, Takaharu*

Progress of Theoretical and Experimental Physics (Internet), 2012(1), p.01A205_1 - 01A205_27, 2012/00

AA2012-0119.pdf:1.74MB

 Times Cited Count:116 Percentile:96.25(Physics, Multidisciplinary)

no abstracts in English

Journal Articles

Novel extrapolation method in the Monte Carlo shell model

Shimizu, Noritaka*; Utsuno, Yutaka; Mizusaki, Takahiro*; Otsuka, Takaharu*; Abe, Takashi*; Homma, Michio*

Physical Review C, 82(6), p.061305_1 - 061305_4, 2010/12

AA2010-0824.pdf:0.34MB

 Times Cited Count:44 Percentile:90.34(Physics, Nuclear)

no abstracts in English

Oral presentation

High-performance computing of two-body matrix elements in the Monte Carlo shell model

Utsuno, Yutaka; Shimizu, Noritaka*; Abe, Takashi*; Otsuka, Takaharu*

no journal, , 

no abstracts in English

12 (Records 1-12 displayed on this page)
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