PIRSA:14090074

Stripes and pairing in t-J and Hubbard models

APA

White, S. (2014). Stripes and pairing in t-J and Hubbard models. Perimeter Institute. https://pirsa.org/14090074

MLA

White, Steven. Stripes and pairing in t-J and Hubbard models. Perimeter Institute, Sep. 11, 2014, https://pirsa.org/14090074

BibTex

          @misc{ pirsa_14090074,
            doi = {},
            url = {https://pirsa.org/14090074},
            author = {White, Steven},
            keywords = {Condensed Matter},
            language = {en},
            title = {Stripes and pairing in t-J and Hubbard models},
            publisher = {Perimeter Institute},
            year = {2014},
            month = {sep},
            note = {PIRSA:14090074 see, \url{https://pirsa.org}}
          }
          

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.