Results 31 to 40 of about 5,212,253 (358)

Derivation of the Critical Point Scaling Hypothesis Using Thermodynamics Only

open access: yesEntropy, 2020
Based on the foundations of thermodynamics and the equilibrium conditions for the coexistence of two phases in a magnetic Ising-like system, we show, first, that there is a critical point where the isothermal susceptibility diverges and the specific heat
Víctor Romero-Rochín
doaj   +1 more source

Critical Fractional p-Laplacian System with Negative Exponents

open access: yesJournal of Function Spaces, 2023
In this paper, we consider a class of fractional p-Laplacian problems with critical and negative exponents. By decomposition of the Nehari manifold, the existence and multiplicity of nontrivial solutions for the above problems are established with ...
Qinghao Zhu, Jianming Qi
doaj   +1 more source

Four-loop critical exponents for the Gross-Neveu-Yukawa models [PDF]

open access: yes, 2017
We study the chiral Ising, the chiral XY and the chiral Heisenberg models at four-loop order with the perturbative renormalization group in $4-\epsilon$ dimensions and compute critical exponents for the Gross-Neveu-Yukawa fixed points to order $\mathcal ...
N. Zerf   +4 more
semanticscholar   +1 more source

Restricted Percolation Critical Exponents in High Dimensions [PDF]

open access: yesCommunications on Pure and Applied Mathematics, 2018
Despite great progress in the study of critical percolation on ℤd for d large, properties of critical clusters in high‐dimensional fractional spaces and boxes remain poorly understood, unlike the situation in two dimensions.
S. Chatterjee, Jack Hanson
semanticscholar   +1 more source

Fermion bilinear operator critical exponents at O(1/N2) in the QED-Gross-Neveu universality class [PDF]

open access: yesPhysical Review D, 2018
We use the critical point large $N$ formalism to calculate the critical exponents corresponding to the fermion mass operator and flavour non-singlet fermion bilinear operator in the universality class of Quantum Electrodynamics (QED) coupled to the Gross-
J. Gracey
semanticscholar   +1 more source

Critical Behavior of La0.8Ca0.2Mn1−xCoxO3 Perovskite (0.1 ≤ x ≤ 0.3)

open access: yesMagnetochemistry, 2017
The critical properties of La0.8Ca0.2Mn1−xCoxO3 (x = 0, 0.1, 0.2 and 0.3) compounds were investigated by analysis of the magnetic measurements in the vicinity of their critical temperature. Arrott plots revealed that the paramagnetic PM-ferromagnetic (FM)
Dorra Turki   +10 more
doaj   +1 more source

Dirichlet forms and critical exponents on fractals [PDF]

open access: yesTransactions of the American Mathematical Society, 2017
Let $B^{\sigma}_{2, \infty}$ denote the Besov space defined on a compact set $K \subset {\Bbb R}^d$ which is equipped with an $\alpha$-regular measure $\mu$. The {\it critical exponent} $\sigma^*$ is the supremum of the $\sigma$ such that $B^{\sigma}_{2,
Qingsong Gu, K. Lau
semanticscholar   +1 more source

Connecting Complex Electronic Pattern Formation to Critical Exponents

open access: yesCondensed Matter, 2021
Scanning probes reveal complex, inhomogeneous patterns on the surface of many condensed matter systems. In some cases, the patterns form self-similar, fractal geometric clusters. In this paper, we advance the theory of criticality as it pertains to those
Shuo Liu   +2 more
doaj   +1 more source

Large N critical exponents for the chiral Heisenberg Gross-Neveu universality class [PDF]

open access: yes, 2018
We compute the large $N$ critical exponents $\eta$, $\eta_\phi$ and $1/\nu$ in $d$-dimensions in the chiral Heisenberg Gross-Neveu model to several orders in powers of $1/N$.
J. Gracey
semanticscholar   +1 more source

Dynamical Critical Exponents in Driven-Dissipative Quantum Systems. [PDF]

open access: yesPhysical Review Letters, 2017
We study the phase ordering of parametrically and incoherently driven microcavity polaritons after an infinitely rapid quench across the critical region.
P. Comaron   +6 more
semanticscholar   +1 more source

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