Abstract:
The dynamics of a single hole in the t - J model is solved exactly for all temperature, T, in the limit of large spatial dimensions, , using the Feenberg renormalized perturbation series. We focus in particular on single-particle spectra, together with optical and static hole conductivities. Explicit results are illustrated for a Bethe lattice, and exemplify the continuous thermal evolution of the underlying string picture from the T =0 string-pinned limit through to the paramagnetic phase. Quenched site-disorder is also readily incorporated, exact results thereby being obtained for the interplay between disorder and thermally-induced hole dynamics.
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Received 16 September 1998
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Stumpf, M., Logan, D. Thermal evolution of hole dynamics in the large-dimensional model. Eur. Phys. J. B 8, 377–387 (1999). https://doi.org/10.1007/s100510050703
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DOI: https://doi.org/10.1007/s100510050703