Universality of phase diagrams in QCD and QCD-like theories

Masanori Hanada; Naoki Yamamoto

Universality of phase diagrams in QCD and QCD-like theories

Research output: Contribution to journal › Conference article › peer-review

Abstract

We show the universality of phase diagrams in QCD and QCD-like theories through the large-N_c equivalence. The whole phase diagrams are identical between QCD at finite isospin chemical potential and SO(2N_c) and Sp(2N_c) gauge theories at finite baryon chemical potential. In the chiral limit, they are also identical to that of QCD at finite chiral chemical potential. Outside the pion or diquark condensed phase in these theories, the universality of phase diagrams is applicable to QCD at finite baryon chemical potential. We further argue that the universality may work approximately even for N_c = 3. Our result makes it possible to study QCD at finite baryon chemical potential and high temperature, especially the chiral phase transition, using sign-free theories on the lattice.

Original language	English
Journal	Proceedings of Science
Volume	139
Publication status	Published - 2011 Jan 1
Externally published	Yes
Event	29th International Symposium on Lattice Field Theory, Lattice 2011 - Squaw Valley, Lake Tahoe, United States Duration: 2011 Jul 10 → 2011 Jul 16

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title = "Universality of phase diagrams in QCD and QCD-like theories",

abstract = "We show the universality of phase diagrams in QCD and QCD-like theories through the large-Nc equivalence. The whole phase diagrams are identical between QCD at finite isospin chemical potential and SO(2Nc) and Sp(2Nc) gauge theories at finite baryon chemical potential. In the chiral limit, they are also identical to that of QCD at finite chiral chemical potential. Outside the pion or diquark condensed phase in these theories, the universality of phase diagrams is applicable to QCD at finite baryon chemical potential. We further argue that the universality may work approximately even for Nc = 3. Our result makes it possible to study QCD at finite baryon chemical potential and high temperature, especially the chiral phase transition, using sign-free theories on the lattice.",

author = "Masanori Hanada and Naoki Yamamoto",

year = "2011",

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language = "English",

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journal = "Proceedings of Science",

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T1 - Universality of phase diagrams in QCD and QCD-like theories

AU - Hanada, Masanori

AU - Yamamoto, Naoki

PY - 2011/1/1

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N2 - We show the universality of phase diagrams in QCD and QCD-like theories through the large-Nc equivalence. The whole phase diagrams are identical between QCD at finite isospin chemical potential and SO(2Nc) and Sp(2Nc) gauge theories at finite baryon chemical potential. In the chiral limit, they are also identical to that of QCD at finite chiral chemical potential. Outside the pion or diquark condensed phase in these theories, the universality of phase diagrams is applicable to QCD at finite baryon chemical potential. We further argue that the universality may work approximately even for Nc = 3. Our result makes it possible to study QCD at finite baryon chemical potential and high temperature, especially the chiral phase transition, using sign-free theories on the lattice.

AB - We show the universality of phase diagrams in QCD and QCD-like theories through the large-Nc equivalence. The whole phase diagrams are identical between QCD at finite isospin chemical potential and SO(2Nc) and Sp(2Nc) gauge theories at finite baryon chemical potential. In the chiral limit, they are also identical to that of QCD at finite chiral chemical potential. Outside the pion or diquark condensed phase in these theories, the universality of phase diagrams is applicable to QCD at finite baryon chemical potential. We further argue that the universality may work approximately even for Nc = 3. Our result makes it possible to study QCD at finite baryon chemical potential and high temperature, especially the chiral phase transition, using sign-free theories on the lattice.

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M3 - Conference article

AN - SCOPUS:85053326475

SN - 1824-8039

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JO - Proceedings of Science

JF - Proceedings of Science

T2 - 29th International Symposium on Lattice Field Theory, Lattice 2011

Y2 - 10 July 2011 through 16 July 2011

ER -

Universality of phase diagrams in QCD and QCD-like theories

Abstract

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