Phase diagram at finite temperature and quark density in the strong coupling limit of lattice QCD for color SU(3)


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Please use this identifier to cite or link to this item:http://hdl.handle.net/2115/18873

Title:	Phase diagram at finite temperature and quark density in the strong coupling limit of lattice QCD for color SU(3)
Authors:	Kawamoto, N. Browse this author →KAKEN DB
	Miura, K. Browse this author
	Ohnishi, A. Browse this author
	Ohnuma, T. Browse this author
Issue Date:	Jan-2007
Publisher:	American Physical Society
Journal Title:	Physical Review D
Volume:	75
Issue:	1
Start Page:	014502
Publisher DOI:	10.1103/PhysRevD.75.014502
Abstract:	We study the phase diagram of quark matter at finite temperature (T) and chemical potential (µ) in the strong coupling limit of lattice QCD for color SU(3). We derive an analytical expression of the effective free energy as a function of T and µ, including baryon effects. The finite temperature effects are evaluated by integrating over the temporal link variable exactly in the Polyakov gauge with an antiperiodic boundary condition for fermions. The obtained phase diagram shows the first and the second order phase transition at low and high temperatures, respectively, and those are separated by the tricritical point in the chiral limit. Baryon has effects to reduce the effective free energy and to extend the hadron phase to a larger µ direction at low temperatures.
Rights:	Copyright © 2007 American Physical Society
Relation:	http://www.aps.org/
Type:	article
URI:	http://hdl.handle.net/2115/18873
Appears in Collections:	理学院・理学研究院 (Graduate School of Science / Faculty of Science) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)

Submitter: 河本昇

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