The Tunneling Hybrid Monte-Carlo algorithm
| dc.creator | Golterman, Maarten | |
| dc.creator | Shamir, Yigal | |
| dc.date | 2007-05-21 | |
| dc.date | 2007-10-09 | |
| dc.date.accessioned | 2026-07-07T10:55:43Z | |
| dc.date.available | 2026-07-07T10:55:43Z | |
| dc.description | The hermitian Wilson kernel used in the construction of the domain-wall and overlap Dirac operators has exceptionally small eigenvalues that make it expensive to reach high-quality chiral symmetry for domain-wall fermions, or high precision in the case of the overlap operator. An efficient way of suppressing such eigenmodes consists of including a positive power of the determinant of the Wilson kernel in the Boltzmann weight, but doing this also suppresses tunneling between topological sectors. Here we propose a modification of the Hybrid Monte-Carlo algorithm which aims to restore tunneling between topological sectors by excluding the lowest eigenmodes of the Wilson kernel from the molecular-dynamics evolution, and correcting for this at the accept/reject step. We discuss the implications of this modification for the acceptance rate. | |
| dc.description | improved discussion in appendix B, RevTeX, 19 pages | |
| dc.identifier | https://arxiv.org/abs/0705.2928 | |
| dc.identifier | http://arxiv.org/abs/0705.2928 | |
| dc.identifier | Phys.Rev.D76:094512,2007 | |
| dc.identifier | doi:10.1103/PhysRevD.76.094512 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/186170 | |
| dc.subject | High Energy Physics - Lattice | |
| dc.title | The Tunneling Hybrid Monte-Carlo algorithm | |
| dc.type | text |