We study corrections to the Heisenberg interaction between several lateral, single-electron quantum dots. We show, using exact diagonalization, that three-body chiral terms couple triangular configurations to external sources of flux rather strongly. The chiral corrections impact single qubit encodings utilizing loops of three or more Heisenberg coupled quantum dots.
@article{arxiv.cond-mat/0403444,
title = {Chirality in Quantum Computation with Spin Cluster Qubits},
author = {V. W. Scarola and K. Park and S. Das Sarma},
journal= {arXiv preprint arXiv:cond-mat/0403444},
year = {2009}
}