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Localization in lattice QCD ( with emphasis on practical implications )
| Content Provider | Semantic Scholar |
|---|---|
| Author | Golterman, Maarten F. L. Shamir, Yigal |
| Copyright Year | 2003 |
| Abstract | When Anderson localization takes place in a quenched disordered system, a continuous symmetry can be broken spontaneously without accompanying Goldstone bosons. Elaborating on this observation we propose a unified, microscopic physical picture of the phase diagram of quenched and unquenched QCD with two flavors of Wilson fermions. The phase with Goldstone bosons—by definition the Aoki phase—is always identified as the region where the mobility edge of the (hermitian) Wilson operator is zero. We then discuss the implications for domainwall and overlap fermions. We conclude that both formulations are valid only well outside the Aoki phase of the associated Wilson-operator kernel, because this is where locality and chirality can be both maintained. |
| File Format | PDF HTM / HTML |
| Alternate Webpage(s) | http://cds.cern.ch/record/641601/files/0309027.pdf |
| Alternate Webpage(s) | http://arxiv.org/pdf/hep-lat/0309027v1.pdf |
| Language | English |
| Access Restriction | Open |
| Subject Keyword | Arabic numeral 0 Flavoring Lattice QCD Locality of reference Phase diagram Quenched approximation |
| Content Type | Text |
| Resource Type | Article |
