English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Tools annual

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Tools monthly

Global: Zendy Plus monthly

Presents the access of premium content as premium feature

Premium Content

Global: Zendy Plus annual

Global: Zendy Free Plan

We study dimensional crossover in Ising systems at complex temperatures bycomparing three types of system: the infinite isotropic 2D Ising model; theinfinite anisotropic 2D Ising model; and Ising ladders with a finite number oflegs. In particular we present evidence, from both tensor-network calculationsand numerical evaluations based on the exact solution of the model, that theinfinite anisotropic 2D Ising model exhibits long-range spatially modulatedmagnetization in certain regions of the complex-temperature plane. We discussthe physics of the special unitary points that exists in thecomplex-temperature plane, and their connections to the theory of quantuminformation processing.

Dimensional crossover and the link between thermodynamics and dynamics: the case of Ising models at complex temperature