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Fractionalization into merons in quantum dots

A. Petkovic·M. V. Milovanovic
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Abstract

We study by exact diagonalization, in the lowest Landau level approximation, the Coulomb interaction problem of N = 4 and N = 6 quantum dot in the limit of zero Zeeman coupling. We find that meron excitations constitute the lowest lying states of the quantum dots. This is based on a mapping between the excitations of the dot and states of the Haldane-Shastry spin chain.

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A. Petkovic, M. V. Milovanovic. 2006-11-05. Fractionalization into merons in quantum dots. https://doi.org/10.1103/physrevlett.98.066808

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