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arXiv · 1009.1784

Chiral Spin Textures of Strongly Interacting Particles in Quantum Dots

Catherine J. Stevenson·Jordan Kyriakidis
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Abstract

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 quasi-topological spin textures within energetically degenerate subspaces in the three- and four-particle system.

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Catherine J. Stevenson, Jordan Kyriakidis. 2011-03-07. Chiral Spin Textures of Strongly Interacting Particles in Quantum Dots. https://doi.org/10.1103/physrevb.83.115306

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