Results 61 to 70 of about 5,212,253 (358)

Scaling laws and simulation results for the self--organized critical forest--fire model

open access: yes, 1994
We discuss the properties of a self--organized critical forest--fire model which has been introduced recently. We derive scaling laws and define critical exponents.
A. Bunde   +25 more
core   +1 more source

Landau like theory for universality of critical exponents in quasistatioary states of isolated mean-field systems [PDF]

open access: yes, 2015
An external force dynamically drives an isolated mean-field Hamiltonian system to a long-lasting quasistationary state, whose lifetime increases with population of the system.
Ogawa, Shun, Yamaguchi, Yoshiyuki Y.
core   +4 more sources

Critical exponents of the 3d Ising and related models from conformal bootstrap [PDF]

open access: yesJournal of High Energy Physics, 2014
The constraints of conformal bootstrap are applied to investigate a set of conformal field theories in various dimensions. The prescriptions can be applied to both unitary and non unitary theories allowing for the study of the spectrum of low-lying ...
F. Gliozzi, A. Rago
semanticscholar   +1 more source

The concentration-compactness principles for Ws,p(·,·)(ℝN) and application

open access: yesAdvances in Nonlinear Analysis, 2020
We obtain a critical imbedding and then, concentration-compactness principles for fractional Sobolev spaces with variable exponents. As an application of these results, we obtain the existence of many solutions for a class of critical nonlocal problems ...
Ho Ky, Kim Yun-Ho
doaj   +1 more source

On critical exponents without Feynman diagrams [PDF]

open access: yes, 2015
In order to achieve a better analytic handle on the modern conformal bootstrap program, we re-examine and extend the pioneering 1974 work of Polyakov’s, which was based on consistency between the operator product expansion and unitarity.
Kallol Sen, Aninda Sinha
semanticscholar   +1 more source

Solving the 3d Ising Model with the Conformal Bootstrap II. $$c$$c-Minimization and Precise Critical Exponents [PDF]

open access: yes, 2012
We use the conformal bootstrap to perform a precision study of the operator spectrum of the critical 3d Ising model. We conjecture that the 3d Ising spectrum minimizes the central charge $$c$$c in the space of unitary solutions to crossing symmetry ...
S. El-Showk   +5 more
semanticscholar   +1 more source

Revisiting (logarithmic) scaling relations using renormalization group

open access: yesCondensed Matter Physics, 2017
We explicitly compute the critical exponents associated with logarithmic corrections (the so-called hatted exponents) starting from the renormalization group equations and the mean field behavior for a wide class of models at the upper critical behavior (
J.J. Ruiz-Lorenzo
doaj   +1 more source

Lyapunov exponents as probes for a phase transition of a Kerr-AdS black hole

open access: yesPhysics Letters B
In this letter, we study proper time Lyapunov exponents and coordinate time Lyapunov exponents of chaos for both massless and massive particles orbiting a four-dimensional Kerr-AdS black hole, and explore their relationships with the phase transition of ...
Deyou Chen, Chuang Yang, Yongtao Liu
doaj   +1 more source

A conjectured upper bound on the Choptuik critical exponents

open access: yesNuclear Physics B, 2021
Near-critical type II gravitational collapse is characterized by the formation of arbitrarily small black holes whose horizon radii are described by the simple scaling law rBH∝(p−p⁎)γ, where γ is the matter-dependent Choptuik critical exponent and Δp≡p−p⁎
Shahar Hod
doaj   +1 more source

Characterizing Parental Concerns About Lasting Impacts of Treatment in Children With B‐Acute Lymphoblastic Leukemia

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Background B‐acute lymphoblastic leukemia (B‐ALL) is the most common pediatric cancer, and while most children in high‐resource settings are cured, therapy carries risks for long‐term toxicities. Understanding parents’ concerns about these late effects is essential to guide anticipatory support and inform evolving therapeutic approaches ...
Kellee N. Parker   +7 more
wiley   +1 more source

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