Speaker
Dr
Hiroya Suno
(RIKEN Advanced Institute for Computational Science; RIKEN Nishina Center)
Description
We are developing a computer code for calculating eigenvalues of the non-Hermitian O(a)-improved Wilson-Dirac operator. We introduce here the Sakurai-Sugiura method, which is an eigensolver algorithm based on a contour integral, allowing us to calculate desired eigenvalues located inside a given contour. We report the test results for low-lying eigenvalues obtained with free-case, quenched and full QCD configurations up to a lattice size of 96^4.
Primary author
Dr
Hiroya Suno
(RIKEN Advanced Institute for Computational Science; RIKEN Nishina Center)
Co-authors
Dr
Akira Imakura
(Department of Computer Science, University of Tsukuba)
Prof.
Ken-Ichi Ishikawa
(Department of Physical Science, Hiroshima University)
Prof.
Tetsuya Sakurai
(Department of Computer Science, University of Tsukuba; Center for Computational Science, University of Tsukuba)
Dr
Yasunori Futamura
(Department of Computer Science, University of Tsukuba)
Dr
Yoshifumi Nakamura
(RIKEN Advanced Institute for Computational Science)
Prof.
Yoshinobu Kuramashi
(RIKEN Advanced Institute for Computational Science; Center for Computational Science, University of Tsukuba; Faculty of Pure and Applied Sciences, University of Tshukuba)
