Chiral Phase Transition at Finite Isospin Density in Linear Sigma Model

Using the linear sigma model, we have introduced the pion isospin chemical potential. The chiral phase transition is studied at finite temperatures and finite isospin densities. We have studied the μ - T phase diagram for the chiral phase transition and found the transition cannot happen below a certain low temperature because of the BoseEinstein condensation in this system. Above that temperature, the chiral phase transition is studied by the isotherms of pressure versus density. We indicate that the transition, in the chiral limit, is a first-order transition from a low-density phase to a high-density phase like a gas-liquid phase transition.

作 者： Shu Song LI Jia-Rong   作者單位： Institute of Particle Physics, Central-China Normal University, Wuhan 430079, China  刊 名： 理論物理通訊（英文版）  ISTIC SCI 英文刊名： COMMUNICATIONS IN THEORETICAL PHYSICS  年，卷(期)： 2005 43(3)  分類號：   關(guān)鍵詞： finite temperature field theory   nuclear matter   chiral symmetries  

【Chiral Phase Transition at Finite Is】相關(guān)文章：

Energy Stable Schemes for Cahn-Hilliard Phase-Field Model of Two-Phase Incompressible Flows04-26

BEC口試全真試題(phase II)05-04

BEC口試全真試題(phase III)05-04

Progress in researching into the transition of the Mesozoic tectonic systems in southeast China04-26

Finite element formulation of active constraining layer damping plate using laminate theory04-27

Determination of operational parameters of anaerobic phase for enhanced phosphorus removal in MBR04-26

Gas phase tricholoethylene removal at low concentration using activated carbon fiber04-26

IMPACTS OF TWO TROPICAL CYCLONES EXPERIENCING EXTRATROPICAL TRANSITION DURING NORTHWARD PROGRESSION ON THE RAINFALL OF L04-27

Recent Results on Fast Flow Gas-Phase Partial Oxidation of Lower Alkanes04-26

Recent Results on Fast Flow Gas-Phase Partial Oxidation of Lower Alkanes04-26