Electric Multipole Insulators


Hughes, T. (2021). Electric Multipole Insulators. Perimeter Institute. https://pirsa.org/21020001


Hughes, Taylor. Electric Multipole Insulators. Perimeter Institute, Feb. 01, 2021, https://pirsa.org/21020001


          @misc{ pirsa_PIRSA:21020001,
            doi = {10.48660/21020001},
            url = {https://pirsa.org/21020001},
            author = {Hughes, Taylor},
            keywords = {Condensed Matter},
            language = {en},
            title = {Electric Multipole Insulators},
            publisher = {Perimeter Institute},
            year = {2021},
            month = {feb},
            note = {PIRSA:21020001 see, \url{https://pirsa.org}}

Taylor Hughes University of Illinois Urbana-Champaign


In this talk I will present a general framework to distinguish different classes of charge insulators based on whether or not they insulate or conduct higher multipole moments (dipole, quadrupole, etc.). This formalism applies to generic many-body systems that support multipolar conservation laws. Applications of this work provide a key link between recently discovered higher order topological phases and fracton phases of matter.