Kanazawa, Takuya ; Wettig, Tilo ; Yamamoto, Naoki
Alternative Links zum Volltext:DOIVerlag
| Dokumentenart: | Artikel |
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| Titel eines Journals oder einer Zeitschrift: | Journal of High Energy Physics |
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| Verlag: | SPRINGER |
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| Ort der Veröffentlichung: | NEW YORK |
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| Band: | 2009 |
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| Nummer des Zeitschriftenheftes oder des Kapitels: | 08 |
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| Seitenbereich: | 003-003 |
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| Datum: | 2009 |
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| Institutionen: | Physik > Institut für Theoretische Physik > Lehrstuhl Professor Braun > Arbeitsgruppe Tilo Wettig |
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| Identifikationsnummer: | | Wert | Typ |
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| 10.1088/1126-6708/2009/08/003 | DOI |
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| Stichwörter / Keywords: | FINITE BARYON DENSITY; LATTICE GAUGE-THEORY; 2 COLOR QCD; RANDOM-MATRIX THEORY; DIRAC OPERATOR; PARTITION-FUNCTION; SYMMETRY-BREAKING; FLAVOR LOCKING; QUARK MATTER; THERMODYNAMICS; Spontaneous Symmetry Breaking; Sum Rules; Chiral Lagrangians |
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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: | 67015 |
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Zusammenfassung
We analytically study two-color QCD with an even number of flavors at high baryon density. This theory is free from the fermion sign problem. Chiral symmetry is broken spontaneously by the diquark condensate. Based on the symmetry breaking pattern we construct the low-energy effective Lagrangian for the Nambu-Goldstone bosons. We identify a new epsilon-regime at high baryon density in which the ...
Zusammenfassung
We analytically study two-color QCD with an even number of flavors at high baryon density. This theory is free from the fermion sign problem. Chiral symmetry is broken spontaneously by the diquark condensate. Based on the symmetry breaking pattern we construct the low-energy effective Lagrangian for the Nambu-Goldstone bosons. We identify a new epsilon-regime at high baryon density in which the quark mass dependence of the partition function can be determined exactly. We also derive Leutwyler-Smilga-type spectral sum rules for the complex eigenvalues of the Dirac operator in terms of the fermion gap. Our results can in principle be tested in lattice QCD simulations.
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