一种可能的超导孤子通道:带有非对称双阱势的氢键链  

A Possible Channel of Superconductive Kink-antikink Pairs: Hydrogen-bonded Chain With Asymmetric Double-well Potential

作　　者：袁德荣[1] 

机构地区：[1]湖北大学物理学与电子技术学院,湖北武汉430062

出　　处：《湖北大学学报（自然科学版）》1999年第3期239-243,共5页Journal of Hubei University：Natural Science

摘　　要：证明了在带有非对称双阱势的有阻尼的氢键链中 ,当无外场时 ,也存在运动的扭结孤子激发 .扭结和反扭结是成对出现并以相等相反的速度运动的 .这预示这类氢键链将可能作为一种孤子型超导电通道 .讨论了扭结 -反扭结对的平衡分布 ,推导出一条分子链所输运的超导电流 .This work shows that there is the kink-type soliton excitation in a damped hydrogen-bonded chain with asysmmetric double-well potential in the absence of external field.A kink and an antikink are excited in pairs and move with respective velocities which are equal in magnitude but oppositely directed.This implies that such a chain behaves like a solitonic superconductive channel.The equilibrium distribution of kink-antikink pairs is discussed and the supercurrent transported in a chain is derived.

关 键 词：氢键链 非对称双阱势 扭结对 孤子型 超导电性 

分 类 号：O511.1[理学—低温物理]