PIRSA:14050109

Quantum matter without quasiparticles

Sachdev, S. (2014). Quantum matter without quasiparticles. Perimeter Institute. https://pirsa.org/14050109

Sachdev, Subir. Quantum matter without quasiparticles. Perimeter Institute, May. 29, 2014, https://pirsa.org/14050109 

          @misc{ pirsa_PIRSA:14050109,
            doi = {10.48660/14050109},
            url = {https://pirsa.org/14050109},
            author = {Sachdev, Subir},
            keywords = {},
            language = {en},
            title = {Quantum matter without quasiparticles},
            publisher = {Perimeter Institute},
            year = {2014},
            month = {may},
            note = {PIRSA:14050109 see, \url{https://pirsa.org}}
          }

Subir Sachdev Harvard University

DOI 10.48660/14050109
Collection
Talk Type Conference

Abstract

Modern materials abound in systems to which the quasiparticle picture does not apply, and developing their theoretical description remains an important challenge in condensed matter physics. I will describe recent progress in understanding the dynamics of two systems without quasiparticles: (i) ultracold atoms in optical lattices, and (ii) the nematic quantum critical point of metals with applications to the `strange metal’ found in the high temperature superconductors. A combination of field-theoretic, holographic, and numerical methods will be used.