Video URL

https://pirsa.org/20110017

Ancilla qubit wavefunctions for the pseudogap metal phase of the cuprates

Sachdev, S. (2020). Ancilla qubit wavefunctions for the pseudogap metal phase of the cuprates. Perimeter Institute for Theoretical Physics. https://pirsa.org/20110017

Sachdev, Subir. Ancilla qubit wavefunctions for the pseudogap metal phase of the cuprates. Perimeter Institute for Theoretical Physics, Nov. 16, 2020, https://pirsa.org/20110017 

          @misc{ scivideos_PIRSA:20110017,
            doi = {10.48660/20110017},
            url = {https://pirsa.org/20110017},
            author = {Sachdev, Subir},
            keywords = {Quantum Fields and Strings},
            language = {en},
            title = {Ancilla qubit wavefunctions for the pseudogap metal phase of the cuprates},
            publisher = {Perimeter Institute for Theoretical Physics},
            year = {2020},
            month = {nov},
            note = {PIRSA:20110017 see, \url{https://scivideos.org/pirsa/20110017}}
          }

Subir Sachdev Harvard University

DOI 10.48660/20110017
Source Repository PIRSA
Collection
Talk Type Conference
Subject

Abstract

There is now significant experimental evidence that the physics of the underdoped cuprates is controlled by a metallic state with a Fermi surface whose volume does not equal the Luttinger value. However, there has been no proposed wavefunction for such a state for electrons in a single band. I will describe a wavefunction which involves tracing over 2 layers of ancilla qubits. The proposal also leads to a gauge theory for the transition to the conventional Fermi liquid state found at large doping.