PIRSA:13030097

Frustrated Magnets and Quantum Spin Liquids

White, S. (2013). Frustrated Magnets and Quantum Spin Liquids. Perimeter Institute. https://pirsa.org/13030097

White, Steven. Frustrated Magnets and Quantum Spin Liquids. Perimeter Institute, Mar. 20, 2013, https://pirsa.org/13030097 

          @misc{ pirsa_PIRSA:13030097,
            doi = {10.48660/13030097},
            url = {https://pirsa.org/13030097},
            author = {White, Steven},
            keywords = {Condensed Matter},
            language = {en},
            title = {Frustrated Magnets and Quantum Spin Liquids},
            publisher = {Perimeter Institute},
            year = {2013},
            month = {mar},
            note = {PIRSA:13030097 see, \url{https://pirsa.org}}
          }

Steven White University of California, Irvine

DOI 10.48660/13030097
Collection
Talk Type Scientific Series
Subject

Abstract

A quantum spin liquid is a solid whose atoms have magnetic moments but, because of quantum fluctuations, these moments fluctuate like a liquid even at zero temperature.  Two dimensional spin liquids have been suggested as a way to produce high temperature superconductivity, and to build quantum computers.  Just as helium is the only element which is a liquid at zero temperature, 2D spin liquids have been extremely difficult to find, despite decades of effort, raising the question, do realistic spin liquids even exist?
Recently, apparent spin liquids have been found experimentally, stimulating theoretical work to find simple model Hamiltonians of frustrated spin systems that have spin liquid ground states.

In this talk, I will give a broad overview of spin liquids and then focus on our simulations of the kagome Heisenberg model, a simple, realistic model of some of the recent experimental spin liquids, where we find a spin liquid ground state.