PIRSA:19030118

Magnetohydrodynamics and Generalised Superfluids

Jain, A. (2019). Magnetohydrodynamics and Generalised Superfluids. Perimeter Institute. https://pirsa.org/19030118

Jain, Akash. Magnetohydrodynamics and Generalised Superfluids. Perimeter Institute, Mar. 19, 2019, https://pirsa.org/19030118 

          @misc{ pirsa_PIRSA:19030118,
            doi = {10.48660/19030118},
            url = {https://pirsa.org/19030118},
            author = {Jain, Akash},
            keywords = {Quantum Fields and Strings},
            language = {en},
            title = {Magnetohydrodynamics and Generalised Superfluids},
            publisher = {Perimeter Institute},
            year = {2019},
            month = {mar},
            note = {PIRSA:19030118 see, \url{https://pirsa.org}}
          }

Akash Jain

DOI 10.48660/19030118
Collection
Talk Type Scientific Series
Subject

Abstract

Magnetohydrodynamics (MHD) describes the low-energy physics of electromagnetically conducting plasmas. In the conventional formulation of MHD, one introduces dynamical electromagnetic fields on top of the usual hydrodynamic setup by hand. In this talk, we will explore an alternate effective view of MHD purely based on symmetries, as a "string fluid" of magnetic field lines, without any assumption about the underlying microscopic field content. We will argue that MHD is described by a novel theory of superfluidity with a partially broken one-form symmetry. We will also discuss the implications of this broken symmetry for constructing hydrostatic partition functions describing MHD. The talk is based on [arXiv:1808.01939, arXiv:1811.04913].