PIRSA:17060051 Conference Condensed Matter

DOI10.48660/17060051

Conference/School: International Workshop on Quantum Spin Ice

Singh, R. (2017). Numerical linked cluster spectroscopy of quantum spin ice. Perimeter Institute. https://pirsa.org/17060051

Singh, Rajiv. Numerical linked cluster spectroscopy of quantum spin ice. Perimeter Institute, Jun. 09, 2017, https://pirsa.org/17060051 

@misc{ pirsa_PIRSA:17060051,
  doi = {10.48660/17060051},
  url = {https://pirsa.org/17060051},
  author = {Singh, Rajiv},
  keywords = {Condensed Matter},
  language = {en},
  title = {Numerical linked cluster spectroscopy of quantum spin ice},
  publisher = {Perimeter Institute},
  year = {2017},
  month = {jun},
  note = {PIRSA:17060051 see, \url{https://pirsa.org}}
}

Abstract

Numerical Linked Cluster (NLC) expansions can accurately compute thermal properties of quantum spin models in the thermodynamic limit in certain parameter regimes. In classical spin-ice models, where all correlations remain short-ranged down to T=0, these expansions can be convergent even at low T. However, for quantum spin-ice models, they converge only when either temperatures are not too small or there is a strong magnetic field present. To turn these studies into a spectroscopy of exchange parameters, when multiple exchange constants are relevant, is a challenge both because of the limited temperature-range of validity of effective spin-half models and difficulties in isolating magnetic properties in experiments at intermediate and high temperatures. We discuss ways in which such a spectroscopy can proceed.

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