Quantum Hall Skyrmions in the framework of O(4) Non-linear Sigma Model

Physics – Condensed Matter – Mesoscale and Nanoscale Physics

Scientific paper

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12 pages, 2 figures, accepted in IJMP B

Scientific paper

10.1142/S0217979204023751

A new framework for quantum Hall skyrmions in O(4) nonlinear sigma model is
studied here. The size and energy of the skyrmions are determined incorporating
the quartic stability term in the Lagrangian. Moreover, the introduction of a
$\theta$-term determines the spin and statistics of these skyrmions.

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