PIRSA:17060051

Numerical linked cluster spectroscopy of 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}}
          }

Rajiv Singh

Talk number
PIRSA:17060051
Collection
Talk Type
Subject
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.