23–28 Jun 2014
Columbia University
US/Eastern timezone

A filtering technique for the temporally reduced matrix of the Wilson fermion determinant

27 Jun 2014, 15:15
20m
203 Math

203 Math

Talk Algorithms and Machines Algorithms and Machines

Speaker

Dr Keitaro Nagata (KEK)

Description

The Wilson fermion determinant can be written in the form of a series expansion in fugacity z=exp(mu/T), provided that the eigenmodes of the temporally reduced operator are obtained. Since the calculation of all eigenmodes rapidly becomes prohibitive for larger volumes, we develop a method to calculate only the low-energy eigenmodes of the reduced matrix using a matrix filetering technique. This provides a basis of an approximation to neglect uninteresting ultraviolet contributions.

Primary author

Co-authors

Akira Imakura (Department of Computer Science, University of Tsukuba) Prof. Shoji Hashimoto (KEK) Prof. Tetsuya Sakurai (Department of Computer Science, University of Tsukuba) Yasunori Futamura (Department of Computer Science, University of Tsukuba)

Presentation materials