Zigzag Phase Transition in Quantum Wires

被引：31

作者：

Mehta, Abhijit C. ^{[1
]}

Umrigar, C. J. ^{[2
]}

Meyer, Julia S. ^{[3
]}

Baranger, Harold U. ^{[1
]}

机构：

[1] Duke Univ, Dept Phys, Durham, NC 27708 USA

[2] Cornell Univ, Atom & Solid State Phys Lab, Ithaca, NY 14853 USA

[3] INAC, CEA, UJF Grenoble 1, SPSMS,UMR E 9001, F-38054 Grenoble, France

来源：

PHYSICAL REVIEW LETTERS | 2013年 / 110卷 / 24期

基金：

美国国家科学基金会; 欧盟第七框架计划;

关键词：

LIQUIDS;

D O I：

10.1103/PhysRevLett.110.246802

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We study the quantum phase transition of interacting electrons in quantum wires from a one-dimensional (1D) linear configuration to a quasi-1D zigzag arrangement using quantum Monte Carlo methods. As the density increases from its lowest values, first, the electrons form a linear Wigner crystal, then, the symmetry about the axis of the wire is broken as the electrons order in a quasi-1D zigzag phase, and, finally, the electrons form a disordered liquidlike phase. We show that the linear to zigzag phase transition is not destroyed by the strong quantum fluctuations present in narrow wires; it has characteristics which are qualitatively different from the classical transition.

引用

页数：5

共 35 条

[1] Ground state of low-dimensional dipolar gases: Linear and zigzag chains [J].