Logarithmic finite-size scaling of the four-dimensional Ising model

Z Li, T Xiao, Z Zhou, S Fang, Y Deng - Physical Review E, 2024 - APS
Field-theoretical calculations predict that, at the upper critical dimension dc= 4, the finite-size
scaling (FSS) behaviors of the Ising model would be modified by multiplicative logarithmic …

Interplay of the complete-graph and Gaussian fixed-point asymptotics in finite-size scaling of percolation above the upper critical dimension

M Lu, S Fang, Z Zhou, Y Deng - Physical Review E, 2024 - APS
For statistical mechanical systems with continuous phase transitions, there are two closely
related but subtly different mean-field treatments, the Gaussian fixed point (GFP) in the …

Geometric properties of the complete-graph Ising model in the loop representation

Z Li, Z Zhou, S Fang, Y Deng - Physical Review E, 2023 - APS
The exact solution of the Ising model on the complete graph (CG) provides an important,
though mean-field, insight for the theory of continuous phase transitions. Besides the …

Finite-size scaling of the high-dimensional Ising model in the loop representation

T Xiao, Z Li, Z Zhou, S Fang, Y Deng - Physical Review E, 2024 - APS
Besides its original spin representation, the Ising model is known to have the Fortuin-
Kasteleyn (FK) bond and loop representations, of which the former was recently shown to …

Anomalous criticality coexists with giant cluster in the uniform forest model

H Chen, J Salas, Y Deng - SciPost Physics, 2024 - scipost.org
We show by extensive simulations that the whole supercritical phase of the three-
dimensional uniform forest model simultaneously exhibits an infinite tree and a rich variety of …

Violations of Hyperscaling in Finite-Size Scaling above the Upper Critical Dimension

AP Young - Entropy, 2024 - mdpi.com
We consider how finite-size scaling (FSS) is modified above the upper critical dimension,
du= 4, due to hyperscaling violations, which in turn arise from a dangerous irrelevant …

Exploring the Nexus between Thermodynamic Phase Transitions and Geometric Fractals through Systematic Lattice Point Classification

Y Ding - arXiv preprint arXiv:2405.15246, 2024 - arxiv.org
Fractals are ubiquitous in the natural world, and their connection with phase transitions has
been widely observed. This study investigates mechanisms of fractal formation from the …

Anomalous dimensions from conformal field theory: generalized theories

Y Guo, W Li - arXiv preprint arXiv:2408.12344, 2024 - arxiv.org
We investigate $\phi^{2n+ 1} $ deformations of the generalized free theory in the $\epsilon $
expansion, where the canonical kinetic term is generalized to a higher-derivative version …