Chiral Spin Textures of Strongly Interacting Particles in Quantum Dots

Details Chiral Spin Textures of Strongly Interacting Particles in Quantum Dots Chiral Spin Textures of Strongly Interacting Particles in Quantum Dots

2010-09-09

arxiv.org/abs/1009.1784v2

Phys. Rev. B 83, 115306 (2011)

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

13 pages, 17 figures, 1 table

Scientific paper

10.1103/PhysRevB.83.115306

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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