Statistical mechanics explores how the chaotic motion of countless tiny particles gives rise to the predictable laws governing heat, pressure, and phase transitions. This field bridges the gap between the microscopic world of atoms and the macroscopic reality we experience daily, offering deep insights into why materials behave the way they do.

On Gist.Science, we process every new preprint in this category as it appears on arXiv to make these complex findings accessible to everyone. For each paper, we provide both a plain-language explanation for the curious reader and a detailed technical summary for specialists, ensuring that groundbreaking research is never lost behind a wall of jargon.

Below are the latest papers in statistical mechanics, freshly curated and summarized to help you understand the cutting edge of this fascinating discipline.

⚛️ high-energy theory

Functional renormalization group equations for antisymmetric tensor field models at finite temperature

This paper derives functional renormalization group flow equations for antisymmetric rank-2 tensor field models at finite temperature, specifically analyzing symmetry breaking patterns such as SU(n)→USp(n)SU(n) \to USp(n) and SO(n)→SU(n/2)SO(n) \to SU(n/2) to gain insights into their scale-dependent behavior and phase transitions.

Georgii Kalagov2026-05-15
⚛️ quantum physics

Metric response of relative entropy: A universal indicator of quantum criticality

This paper proposes the metric response of quantum relative entropy as a universal indicator of quantum criticality, demonstrating that its susceptibility diverges at quantum critical points in the thermodynamic limit with distinct scaling behaviors for integrable and non-integrable spin chains, while also exhibiting finite-size divergence in classical limits due to the rank of reduced density matrices.

Pritam Sarkar, Diptiman Sen, Arnab Sen2026-05-15
🔬 materials science

Inter-defect interactions, oxygen-vacancy distribution, and oxidation in acceptor-doped ABO3 perovskites

This study employs statistical theory and Monte Carlo simulations to demonstrate that inter-defect interactions and non-uniform impurity distributions significantly govern defect thermodynamics, oxidation behavior, and hole conductivity in acceptor-doped ABO3 perovskites, with oxygen vacancy-impurity interactions proving more influential than inter-vacancy correlations.

L. P. Putilov, M. Z. Uritsky, V. I. Tsidilkovski2026-05-15
🔬 condensed matter

Interference of dynamical arrest, thermodynamic instabilities and energy-scale competition in symmetric binary mixtures

This paper extends the classification of binary mixtures into thermodynamically unstable regions by demonstrating how the interplay between competing energy scales, thermodynamic instabilities, and kinetic arrest generates diverse amorphous states, which can be unified under a non-equilibrium framework using a structural order parameter χ\chi.

Ricardo Peredo-Ortiz, Edilio Lázaro-Lázaro, Magdaleno Medina-Noyola, Luis Fernando Elizondo-Aguilera2026-05-15
🔬 condensed matter

A microcanonical approach to criticality in the mean-field ϕ4\phi^4 model: evidence of intrinsic microcanonical structure before the thermodynamic limit

This paper proposes that criticality is an intrinsic structural property of finite systems, demonstrating through the mean-field ϕ4\phi^4 model that microcanonical inflection-point analysis (MIPA) can identify a unique finite-size critical trajectory that converges to the thermodynamic limit, thereby reframing finite-size criticality as a measurable and predictive phenomenon rather than merely a rounded remnant of the infinite-size limit.

Loris Di Cairano, Roberto Franzosi2026-05-15
🔬 condensed matter

Spontaneous symmetry breaking and Goldstone modes for deep information propagation

This paper demonstrates that deep neural networks with continuous symmetry equivariance support Goldstone-like modes that enable coherent, stable information propagation across depth and time, thereby improving trainability and long-term memory without relying on standard architectural stabilizers like residual connections or normalization.

Nabil Iqbal, T. Anderson Keller, Yue Song, Takeru Miyato, Max Welling2026-05-15