Скачать или смотреть Johanna Erdmenger (Würzburg): Classical spin liquids from frustrated Ising model in hyperbolic space

Thermal Seminars 09/09/25

➤ Johanna Erdmenger (Würzburg): Classical spin liquids from frustrated Ising models in hyperbolic space

The `discrete holography’ programme aims at establishing a holographic duality for discrete systems. For instance, when reducing to a regular tiling of hyperbolic space, the action of JT gravity reduces to an Ising model on this space with particular boundary conditions. Moreover, discrete hyperbolic systems are also of great interest for condensed matter physics. In view of both motivations, I will present recent results on hyperbolic frustrated Ising models at finite temperature. The shape of the boundary may be used to control low-energy states: Depending on the boundary, ordered or disordered ground states are found. These results demonstrate how geometric frustration acts in curved space to produce classical spin liquids.

Based on arXiv:2506.02113 [cond-mat.str-el]

➤ The Thermal Seminars are a series of webinars on finite temperature quantum field theories, conformal field theories, and related topics, from holography, to black holes and bootstrap approaches.
■ Website: sites.google.com/view/thermalseminars
■ Email: [email protected]

✎Organized by: Alessio Miscioscia (YITP), Enrico Marchetto (DESY), Julien Barrat (DESY)