The $\mathrm{SL}(2,\mathbb{R})$ Wess-Zumino-Novikov-Witten spin-chain $\sigma$-model

Roberto Ruiz

The $\text{SL}(2,\mathbb{R})$ Wess-Zumino-Novikov-Witten model realises bosonic-string theory in ${\text{AdS}}_3$ with pure Neveu-Schwarz-Neveu-Schwarz flux. We construct an ef…