Low-lying spectrum for lattice Dirac operators with twisted mass
| dc.creator | Gattringer, Christof | |
| dc.creator | Solbrig, Stefan | |
| dc.date | 2005-09-22 | |
| dc.date.accessioned | 2026-07-07T06:22:58Z | |
| dc.date.available | 2026-07-07T06:22:58Z | |
| dc.description | We analyze the low-lying spectrum and eigenmodes of lattice Dirac operators with a twisted mass term. The twist term expels the eigenvalues from a strip in the complex plane and all eigenmodes obtain a non-vanishing matrix element with gamma-5. For a twisted Ginsparg-Wilson operator the spectrum is located on two arcs in the complex plane. Modes due to non-trivial topological charge of the underlying gauge field have their eigenvalues at the edges of these arcs and obey a remnant index theorem. For configurations in the confined phase we find that the twist mainly affects the zero modes, while the bulk of the spectrum is essentially unchanged. | |
| dc.description | Contribution to Lattice 2005, 6 pages | |
| dc.identifier | https://arxiv.org/abs/hep-lat/0509079 | |
| dc.identifier | http://arxiv.org/abs/hep-lat/0509079 | |
| dc.identifier | PoS LAT2005 (2005) 127 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/96077 | |
| dc.subject | High Energy Physics - Lattice | |
| dc.title | Low-lying spectrum for lattice Dirac operators with twisted mass | |
| dc.type | text |