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arXiv · 2103.02317

Fractional statistics of charge carriers in the one- and two-dimensional t-J model. A hint for the cuprates?

Pieralberto Marchetti
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Abstract

We show that we can interpret the exact solution of the one-dimensional t-J model in the limit of small J in terms of charge carriers with both exchange (braid) and exclusion (Haldane) statistics with parameter 1/2. We discuss an implementation of the same statistics in the two-dimensional t-J model, emphasizing similarities and differences with respect to one dimension. In both cases the exclusion statistics is a consequence of the no-double occupation constraint. We argue that the application of this formalism to hole-doped high Tc cuprates and the derived composite nature of the hole give a hint to grasp many unusual properties of these materials.

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Pieralberto Marchetti. 2021-03-03. Fractional statistics of charge carriers in the one- and two-dimensional t-J model. A hint for the cuprates?. https://doi.org/10.3390/condmat5010012

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