Abstract
We study the properties of an instanton ensemble in three-flavor dense QCD which can be regarded as an instanton plasma weakly interacting by exchanging the η′ mesons. Based on this description, we explore the chiral phase transition induced by the instanton ensemble at high baryon density in analogy with the Berezinskii-Kosterlitz-Thouless transition. Using the renormalization group approach, we show that the instanton ensemble always behaves as a screened and unpaired plasma. We also demonstrate that the chiral condensate in dense QCD is proportional to the instanton density.
| Original language | English |
|---|---|
| Article number | 060 |
| Journal | Journal of High Energy Physics |
| Volume | 2008 |
| Issue number | 12 |
| DOIs | |
| Publication status | Published - 2008 |
| Externally published | Yes |
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Keywords
- QCD
- Renormalization Group
- Solitons Monopoles and Instantons
ASJC Scopus subject areas
- Nuclear and High Energy Physics
Cite this
Instanton-induced crossover in dense QCD. / Yamamoto, Naoki.
In: Journal of High Energy Physics, Vol. 2008, No. 12, 060, 2008.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Instanton-induced crossover in dense QCD
AU - Yamamoto, Naoki
PY - 2008
Y1 - 2008
N2 - We study the properties of an instanton ensemble in three-flavor dense QCD which can be regarded as an instanton plasma weakly interacting by exchanging the η′ mesons. Based on this description, we explore the chiral phase transition induced by the instanton ensemble at high baryon density in analogy with the Berezinskii-Kosterlitz-Thouless transition. Using the renormalization group approach, we show that the instanton ensemble always behaves as a screened and unpaired plasma. We also demonstrate that the chiral condensate in dense QCD is proportional to the instanton density.
AB - We study the properties of an instanton ensemble in three-flavor dense QCD which can be regarded as an instanton plasma weakly interacting by exchanging the η′ mesons. Based on this description, we explore the chiral phase transition induced by the instanton ensemble at high baryon density in analogy with the Berezinskii-Kosterlitz-Thouless transition. Using the renormalization group approach, we show that the instanton ensemble always behaves as a screened and unpaired plasma. We also demonstrate that the chiral condensate in dense QCD is proportional to the instanton density.
KW - QCD
KW - Renormalization Group
KW - Solitons Monopoles and Instantons
UR - http://www.scopus.com/inward/record.url?scp=62649133906&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=62649133906&partnerID=8YFLogxK
U2 - 10.1088/1126-6708/2008/12/060
DO - 10.1088/1126-6708/2008/12/060
M3 - Article
AN - SCOPUS:62649133906
VL - 2008
JO - Journal of High Energy Physics
JF - Journal of High Energy Physics
SN - 1126-6708
IS - 12
M1 - 060
ER -