Symmetry, topology, and thermal stability


Bartlett, S. (2019). Symmetry, topology, and thermal stability. Perimeter Institute. https://pirsa.org/19110118


Bartlett, Stephen. Symmetry, topology, and thermal stability. Perimeter Institute, Nov. 26, 2019, https://pirsa.org/19110118


          @misc{ pirsa_PIRSA:19110118,
            doi = {10.48660/19110118},
            url = {https://pirsa.org/19110118},
            author = {Bartlett, Stephen},
            keywords = {Quantum Information},
            language = {en},
            title = {Symmetry, topology, and thermal stability},
            publisher = {Perimeter Institute},
            year = {2019},
            month = {nov},
            note = {PIRSA:19110118 see, \url{https://pirsa.org}}

Stephen Bartlett University of Sydney


The interplay of symmetry and topology in quantum many-body systems can lead to novel phases of matter, with applications in quantum memories and resources for quantum computing. While we understand the range of phenomena quite well in 2-d systems, there are many open questions for the 3-d case, in particular what kind of symmetries and topology can allow for thermal stability in 3-d models. I’ll present some of the results and open questions in this direction, using the 3-d toric code and the RBH models as examples.