• Roberto Tateo

      Articles written in Pramana – Journal of Physics

    • From $\mathcal{PT}$ -symmetric quantum mechanics to conformal field theory

      Patrick Dorey Clare Dunning Roberto Tateo

      More Details Abstract Fulltext PDF

      One of the simplest examples of a $\mathcal{PT}$-symmetric quantum system is the scaling Yang–Lee model, a quantum field theory with cubic interaction and purely imaginary coupling. We give a historical review of some facts about this model in $d \leq 2$ dimensions, from its original definition in connection with phase transitions in the Ising model and its relevance to polymer physics, to the role it has played in studies of integrable quantum field theory and $\mathcal{PT}$-symmetric quantum mechanics. We also discuss some more general results on $\mathcal{PT}$-symmetric quantum mechanics and the ODE/IM correspondence, and mention applications to magnetic systems and cold atom physics.

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