Special transition and extraordinary phase on the surface of a two-dimensional quantum Heisenberg antiferromagnet

C Ding, W Zhu, W Guo, L Zhang - SciPost Physics, 2023 - scipost.org
Continuous phase transitions exhibit richer critical phenomena on the surface than in the
bulk, because distinct surface universality classes can be realized at the same bulk critical …

Extraordinary-log Universality of Critical Phenomena in Plane Defects

Y Sun, M Hu, Y Deng, JP Lv - Physical Review Letters, 2023 - APS
The recent discovery of the extraordinary-log (E-Log) criticality is a celebrated achievement
in modern critical theory and calls for generalization. Using large-scale Monte Carlo …

Surface critical properties of the three-dimensional clock model

X Zou, S Liu, W Guo - Physical Review B, 2022 - APS
Using Monte Carlo simulations and finite-size scaling analysis, we show that the q-state
clock model with q= 6 on a simple cubic lattice with open surfaces has a rich phase diagram; …

Quantum extraordinary-log universality of boundary critical behavior

Y Sun, JP Lv - Physical Review B, 2022 - APS
The recent discovery of extraordinary-log universality has generated intense interest in
classical and quantum boundary critical phenomena. Despite tremendous efforts, the …

Classical-quantum correspondence of special and extraordinary-log criticality: Villain's bridge

Y Sun, J Lyu, JP Lv - Physical Review B, 2022 - APS
There has been much recent progress on exotic surface critical behavior, yet the classical-
quantum correspondence of special and extraordinary-log criticality remains largely unclear …

Sublattice extraordinary-log phase and special points of the antiferromagnetic Potts model

LR Zhang, C Ding, W Zhang, L Zhang - Physical Review B, 2023 - APS
We study the surface criticality of a three-state antiferromagnetic Potts model on a simple
cubic lattice, whose bulk critical behavior belongs to the universality class of the XY model …

Emergent topological ordered phase for the Ising-XY model revealed by cluster-updating Monte Carlo method

H Ma, W Zhang, Y Tian, C Ding, Y Deng - Chinese Physics B, 2024 - iopscience.iop.org
The two-component cold atom systems with anisotropic hopping amplitudes can be
phenomenologically described by a two-dimensional Ising-XY coupled model with spatial …

Comprehensive studies on the universality of BKT transitions—machine-learning study, Monte Carlo simulation, and level-spectroscopy method

H Otsuka, K Shiina, Y Okabe - Journal of Physics A: Mathematical …, 2023 - iopscience.iop.org
Comprehensive studies are made on the six-state clock universality of two models using
several approaches. We apply the machine-learning technique of phase classification to the …

A study of the surface phase transition in epitaxial antiferromagnetic films by Monte Carlo simulation

SV Belim, EV Bogdanova - Journal of Magnetism and Magnetic Materials, 2024 - Elsevier
In this paper a computer simulation of phase transitions in epitaxial antiferromagnetic films
has been performed. The Ising model and Metropolis algorithm have been used for …

Swarming Transition in Super-Diffusive Self-Propelled Particles

M Nattagh Najafi, RMA Zayed, SA Nabavizadeh - Entropy, 2023 - mdpi.com
A super-diffusive Vicsek model is introduced in this paper that incorporates Levy flights with
exponent α. The inclusion of this feature leads to an increase in the fluctuations of the order …