Chiral spin textures of strongly interacting particles in quantum dots

被引:2
|
作者
Stevenson, Catherine J. [1 ]
Kyriakidis, Jordan [1 ]
机构
[1] Dalhousie Univ, Dept Phys & Atmospher Sci, Halifax, NS B3H 3J5, Canada
关键词
COMPUTATION; VORTICES; DYNAMICS; SYSTEMS; PHASE;
D O I
10.1103/PhysRevB.83.115306
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
We probe for statistical and Coulomb-induced spin textures among the low-lying states of repulsively interacting particles confined to potentials that are both rotationally and time-reversal invariant. In particular, we focus on two-dimensional quantum dots and employ configuration-interaction techniques to directly compute the correlated many-body eigenstates of the system. We produce spatial maps of the single-particle charge and spin density and verify the annular structure of the charge density and the rotational invariance of the spin field. We further compute two-point spin correlations to determine the correlated structure of a single component of the spin vector field. In addition, we compute three-point spin-correlation functions to uncover chiral structures. We present evidence for both chiral and quasitopological spin textures within energetically degenerate subspaces in the three-and four-particle systems.
引用
收藏
页数:14
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