Lattice Realization of Complex Conformal Field Theories: Two-Dimensional Potts Model with States

JL Jacobsen, KJ Wiese - Physical Review Letters, 2024 - APS
The two-dimensional Q-state Potts model with real couplings has a first-order transition for
Q> 4. We study a loop-model realization in which Q is a continuous parameter. This model …

Lattice realization of complex CFTs: Two-dimensional Potts model with states

JL Jacobsen, KJ Wiese - arXiv preprint arXiv:2402.10732, 2024 - arxiv.org
The two-dimensional $ Q $-state Potts model with real couplings has a first-order transition
for $ Q> 4$. We study a loop-model realization in which $ Q $ is a continuous parameter …

The two upper critical dimensions of the Ising and Potts models

KJ Wiese, JL Jacobsen - Journal of High Energy Physics, 2024 - Springer
A bstract We derive the exact actions of the Q-state Potts model valid on any graph, first for
the spin degrees of freedom, and second for the Fortuin-Kasteleyn clusters. In both cases …

Reclaiming the Lost Conformality in a Non-Hermitian Quantum 5-State Potts Model

Y Tang, H Ma, Q Tang, YC He, W Zhu - Physical Review Letters, 2024 - APS
Conformal symmetry, emerging at critical points, can be lost when renormalization group
fixed points collide. Recently, it was proposed that after collisions, real fixed points transition …

Tunable quantum criticality and pseudocriticality across the fixed-point annihilation in the anisotropic spin-boson model

M Weber - arXiv preprint arXiv:2403.02400, 2024 - arxiv.org
Spin-boson models are simple examples of quantum dissipative systems, but also serve as
effective models in quantum magnetism and exhibit nontrivial quantum criticality. Recently …

Microwave-driven multistability in a strongly interacting Rydberg atoms

Y Ma, B Liu, LH Zhang, YJ Wang, ZY Zhang… - arXiv preprint arXiv …, 2024 - arxiv.org
The interactions between Rydberg atoms and microwave fields provide a valuable
framework for studying the complex dynamics out of equilibrium, exotic phases, and critical …