Bruckmann, Falk ; Kovács, Tamás G. ; Schierenberg, Sebastian
Alternative Links zum Volltext:DOIVerlag
| Dokumentenart: | Artikel |
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| Titel eines Journals oder einer Zeitschrift: | Physical Review D |
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| Verlag: | AMER PHYSICAL SOC |
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| Ort der Veröffentlichung: | COLLEGE PK |
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| Band: | 84 |
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| Nummer des Zeitschriftenheftes oder des Kapitels: | 3 |
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| Datum: | 2011 |
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| Institutionen: | Physik > Institut für Theoretische Physik > Lehrstuhl Professor Schäfer > Arbeitsgruppe Andreas Schäfer |
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| Identifikationsnummer: | | Wert | Typ |
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| 10.1103/PhysRevD.84.034505 | DOI |
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| Stichwörter / Keywords: | CHIRAL-SYMMETRY RESTORATION; EXACTLY MASSLESS QUARKS; FINITE-TEMPERATURE; PHASE-TRANSITION; DIRAC OPERATOR; PLANAR LIMIT; GAUGE-THEORY; QCD; INSTANTONS; SPECTRUM; |
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| Dewey-Dezimal-Klassifikation: | 500 Naturwissenschaften und Mathematik > 530 Physik |
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| Status: | Veröffentlicht |
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| Begutachtet: | Ja, diese Version wurde begutachtet |
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| An der Universität Regensburg entstanden: | Ja |
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| Dokumenten-ID: | 64666 |
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Zusammenfassung
We investigate low-lying fermion modes in SU(2) gauge theory at temperatures above the phase transition. Both staggered and overlap spectra reveal transitions from chaotic (random matrix) to integrable (Poissonian) behavior accompanied by an increasing localization of the eigenmodes. We show that the latter are trapped by local Polyakov loop fluctuations. Islands of such "wrong" Polyakov loops ...
Zusammenfassung
We investigate low-lying fermion modes in SU(2) gauge theory at temperatures above the phase transition. Both staggered and overlap spectra reveal transitions from chaotic (random matrix) to integrable (Poissonian) behavior accompanied by an increasing localization of the eigenmodes. We show that the latter are trapped by local Polyakov loop fluctuations. Islands of such "wrong" Polyakov loops can therefore be viewed as defects leading to Anderson localization in gauge theories. We find strong similarities in the spatial profile of these localized staggered and overlap eigenmodes. We discuss possible interpretations of this finding and present a sparse random matrix model that reproduces these features.
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