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We critically examine the magnitude of theoretical uncertainties in perturbative calculations of first-order phase transitions, using the Standard Model effective field theory as our guide. In the usual daisy-resummed approach, we find…

高能物理 - 唯象学 · 物理学 2021-04-14 Djuna Croon , Oliver Gould , Philipp Schicho , Tuomas V. I. Tenkanen , Graham White

Accurate calculations of the nucleation rate $\Gamma$ for first order phase transitions are important for determining their observable consequences in particle physics and cosmology. Perturbative calculations are often used, but they are…

高能物理 - 格点 · 物理学 2025-02-07 Oliver Gould , Anna Kormu , David J. Weir

First-order phase transitions produce gravitational waves and primordial black holes. They always occur in field theories where symmetries are radiatively broken and masses are correspondingly generated. These theories predict a period of…

高能物理 - 唯象学 · 物理学 2026-05-19 Alberto Salvio

This paper describes a new numerical method for solving eigenstate problems, such as time-independent Schrodinger equation. The idea is to use the first order perturbation theory to rewrite the eigenvalue problem as a system of first order…

计算物理 · 物理学 2016-12-20 G. Mikaberidze

The phase behavior of the lattice restricted primitive model (RPM) for ionic systems with additional short-range nearest neighbor (nn) repulsive interactions has been studied by grand canonical Monte Carlo simulations. We obtain a rich…

软凝聚态物质 · 物理学 2009-11-10 Alexandre Diehl , Athanassios Z. Panagiotopoulos

The scaling theory of critical phenomena has been successfully extended for classical first order transitions even though the correlation length does not diverge in these transitions. In this paper we apply the scaling ideas to quantum…

强关联电子 · 物理学 2009-11-10 Mucio A. Continentino , Andre S. Ferreira

The temperature phase transition in the $N$-component scalar field theory with spontaneous symmetry breaking is investigated using the method combining the second Legendre transform and with the consideration of gap equations in the extrema…

高能物理 - 理论 · 物理学 2017-08-23 M. Bordag , V. Skalozub

We study the approach to global breakdown in disordered media driven by increasing external forces. We first analyze the problem by mean-field theory, showing that the failure process can be described as a first-order phase transition,…

统计力学 · 物理学 2009-10-28 Stefano Zapperi , Purusattam Ray , H. Eugene Stanley , Alessandro Vespignani

A layered system of charges with logarithmic interaction parallel to the layers and random dipoles in each layer is studied via a variational method and an energy rationale. These methods reproduce the known phase diagram for a single layer…

无序系统与神经网络 · 物理学 2009-11-10 Baruch Horovitz , Pierre Le Doussal

The Langevin dynamics of a system exhibiting a Fluctuation Induced First Order Phase Transition is solved within the self consistent Hartree Approximation. Competition between interactions at short and long length scales gives rise to…

软凝聚态物质 · 物理学 2013-05-29 Roberto Mulet , Daniel Stariolo

We re-examine a population model which exhibits a continuous absorbing phase transition which belongs to directed percolation in 1+1 dimensions and a first order transition in 2+1 dimensions and above. Studying the model on fractal…

统计力学 · 物理学 2015-05-13 Alastair L Windus , Henrik Jeldtoft Jensen

Machine learning models have become indispensable tools in applications across the physical sciences. Their training is often time-consuming, vastly exceeding the inference timescales. Several protocols have been developed to perturb the…

机器学习 · 计算机科学 2025-06-25 Sagi Meir , Tommer D. Keidar , Shlomi Reuveni , Barak Hirshberg

Fluctuation effects at first order phase transitions driven by changes of other-than-temperature factors like pressure, concentration, or external fields are investigated by perturbation theory. The results for the fluctuation contributions…

统计力学 · 物理学 2017-01-10 Dimo I. Uzunov

First-order phase transitions, characterized by a discontinuous change in the order parameter, are intriguing phenomena in condensed matter physics. However, the underlying, material-specific, microscopic mechanisms often remain unclear.…

Both quantum phase transitions and thermodynamic phase transitions are probably induced by fluctuations, yet the specific mechanism through which fluctuations cause phase transitions remains unclear in existing theories. This paper…

统计力学 · 物理学 2025-05-13 Yonglong Ding

Shaped laser pulses are a powerful tool to induce population transfer between electronic molecular states, and time-dependent perturbation theory is suitable for a description of such a transfer in weak external fields. The application of…

数学物理 · 物理学 2012-05-24 Klaus Renziehausen

We explore quantum phase transitions using two probes of quantum chaos: out-of-time-order correlators (OTOCs) and the $r$-parameter obtained from the level spacing statistics. In particular, we address $p$-spin models associated with…

高能物理 - 理论 · 物理学 2021-09-01 Kyoung-Bum Huh , Kazuki Ikeda , Viktor Jahnke , Keun-Young Kim

Recently, Lipowski [cond-mat/0002378] investigated a stochastic lattice model which exhibits a discontinuous transition from an active phase into infinitely many absorbing states. Since the transition is accompanied by an apparent power-law…

统计力学 · 物理学 2009-10-31 Haye Hinrichsen

A phase separation in a spatially heterogeneous environment is closely related to intracellular science and material science. For the phase separation, initial heterogeneous perturbations play an important role in pattern formations. In…

统计力学 · 物理学 2024-08-30 Rikuya Ishikawa , Rei Kurita

A popular method to compute first-passage probabilities in continuous-time Markov chains is by numerically inverting their Laplace transforms. Past decades, the scientific computing community has developed excellent numerical methods for…

数值分析 · 数学 2020-04-01 Debarati Bhaumik , Marko A. A. Boon , Daan Crommelin , Barry Koren , Bert Zwart
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