1ST-ORDER TRANSITION IN THE DENSE 2-DIMENSIONAL CLASSICAL COULOMB GAS

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	1ST-ORDER TRANSITION IN THE DENSE 2-DIMENSIONAL CLASSICAL COULOMB GAS
	G. M. Zhang; H. Chen; X. Wu
	1993
发表期刊	Physical Review B
ISSN	0163-1829
卷号	48 期号:16 页码:12304-12307
摘要	The phase diagram of the two-dimensional classical neutral Coulomb gas (CG) at finite temperature has been investigated via the mapping to the ground-state properties of the (1 + 1)-dimensional quantum sine-Gordon model. On the basis of self-consistent-field theory recently proposed by the authors for the quantum sine-Gordon model, we show that the CG undergoes two distinct classes of Kosterlitz-Thouless phase transitions between the dielectric gas and conductive plasma: one is the usual continuous transition of infinite order at very small fugacity, the other is a first-order discontinuous transition starting at the fugacity z* = 0. 08 and the temperature T* = 0. 25. Our results further corroborate the existence of a first-order phase transition in the dense CG system predicted by Minnhagen's self-consistent linear screening renormalization theory and Monte Carlo simulations.
部门归属	tongji univ,pohl inst solid state phys,shanghai,peoples r china. acad sinica,int ctr mat phys,shenyang,peoples r china.;zhang, gm (reprint author), chinese ctr adv sci & technol,world lab,ctr theoret phys,beijing,peoples r china
关键词	Sine-gordon Equation Kosterlitz-thouless Transition Ginzburg-landau Fields Xy-model Phase-transitions Statistical-mechanics Superfluid Density Critical-behavior Dimensions Diagram
URL	查看原文
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/39172
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	G. M. Zhang,H. Chen,X. Wu. 1ST-ORDER TRANSITION IN THE DENSE 2-DIMENSIONAL CLASSICAL COULOMB GAS[J]. Physical Review B,1993,48(16):12304-12307.
APA	G. M. Zhang,H. Chen,&X. Wu.(1993).1ST-ORDER TRANSITION IN THE DENSE 2-DIMENSIONAL CLASSICAL COULOMB GAS.Physical Review B,48(16),12304-12307.
MLA	G. M. Zhang,et al."1ST-ORDER TRANSITION IN THE DENSE 2-DIMENSIONAL CLASSICAL COULOMB GAS".Physical Review B 48.16(1993):12304-12307.