23–28 Jun 2014
Columbia University
US/Eastern timezone

Spectral Flow and Index Theorem for Staggered Fermions

24 Jun 2014, 17:30
20m
415 Schapiro

415 Schapiro

Talk Vacuum Structure and Confinement Vacuum Structure and Confinement

Speaker

Dr Eduardo Follana Adin (Universidad de Zaragoza)

Description

We investigate numerically the spectral flow introduced by Adams for the staggered Dirac operator on realistic quenched gauge configurations in 2D and 4D. We study both the unimproved and the HISQ Dirac operators, and we compare with the case of spectral flow for Wilson fermions. We show that the spectral flow provides a good topological definition of the index, with a clear separation of high and low crossing modes, especially for the HISQ Dirac operator.

Primary author

Dr Eduardo Follana Adin (Universidad de Zaragoza)

Co-authors

Dr Alejandro Vaquero (The Cyprus Institute) Dr Giuseppe Di Carlo (Laboratori Nazionali di Frascati) Prof. Vicente Azcoiti (Universidad de Zaragoza)

Presentation materials