PIRSA:20110017 Conference Quantum Fields and Strings

DOI10.48660/20110017

Conference/School: Tensor Networks: from Simulations to Holography III

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

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

@misc{ pirsa_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},
  year = {2020},
  month = {nov},
  note = {PIRSA:20110017 see, \url{https://pirsa.org}}
}

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.

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