PIRSA:14090074  ( MP4 Medium Res , MP3 , PDF ) Which Format?
Stripes and pairing in t-J and Hubbard models
Speaker(s): Steven White
Abstract: This has been a leading question in condensed matter physics since the discovery of the cuprate superconductors. In this talk I will review some of the DMRG and tensor network results for the ground states of these models. A key question I'll address is the issue of stripes: are the ground states striped? Do stripes compete with or induce d-wave superconductivity? Another question I'll address is: how well does 2D DMRG do in comparison with iPEPS and quantum Monte Carlo. I will also show recent results for a standard 3-band Hubbard model for the cuprates. The asymmetry between hole and electron doped systems which is seen in the cuprates arises naturally from this model.
Date: 11/09/2014 - 2:00 pm
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