Results 1 to 10 of about 121,469 (79)

Two infrared Yang-Mills solutions in stochastic quantization and in an effective action formalism [PDF]

open access: yes, 2012
Three decades of work on the quantum field equations of pure Yang-Mills theory have distilled two families of solutions in Landau gauge. Both coincide for high (Euclidean) momentum with known perturbation theory, and both predict an infrared suppressed ...
A. Cucchieri   +8 more
core   +3 more sources

Asymptotic symmetries of difference equations on a lattice [PDF]

open access: yes, 2005
It is known that many equations of interest in Mathematical Physics display solutions which are only asymptotically invariant under transformations (e.g. scaling and/or translations) which are not symmetries of the considered equation.
Gaeta, G., Levi, D., Mancinelli, R.
core   +2 more sources

The disordered Backgammon model [PDF]

open access: yes, 2001
In this paper we consider an exactly solvable model which displays glassy behavior at zero temperature due to entropic barriers. The new ingredient of the model is the existence of different energy scales or modes associated to different relaxational ...
Leuzzi, L., Ritort, F.
core   +8 more sources

Early-Warning Signs for Pattern-Formation in Stochastic Partial Differential Equations [PDF]

open access: yes, 2014
There have been significant recent advances in our understanding of the potential use and limitations of early-warning signs for predicting drastic changes, so called critical transitions or tipping points, in dynamical systems.
Gowda, Karna, Kuehn, Christian
core   +2 more sources

Lagrangian and Hamiltonian two-scale reduction [PDF]

open access: yes, 1988
Studying high-dimensional Hamiltonian systems with microstructure, it is an important and challenging problem to identify reduced macroscopic models that describe some effective dynamics on large spatial and temporal scales.
Abraham R.   +12 more
core   +4 more sources

Critical behaviour of the two-dimensional Ising susceptibility

open access: yes, 2000
We report computations of the short-distance and the long-distance (scaling) contributions to the square-lattice Ising susceptibility in zero field close to T_c.
Guttmann, A. J.   +3 more
core   +1 more source

S-Wave Superconductivity in Anisotropic Holographic Insulators [PDF]

open access: yes, 2015
Within gauge/gravity duality, we consider finite density systems in a helical lattice dual to asymptotically anti-de Sitter space-times with Bianchi VII symmetry. These systems can become an anisotropic insulator in one direction while retaining metallic
Erdmenger, Johanna   +4 more
core   +4 more sources

Critical interface: twisting spin glasses at $T_c$

open access: yes, 2010
We consider identical copies of spin glasses in finite dimension coupled at the boundaries. This allows to identify the spin glass analogous of twisted boundary conditions in ferromagnetic system and leads to the definition of an interface free-energy ...
Brézin, E., Franz, S., Parisi, G.
core   +2 more sources

Anomalous kinetics and transport from 1D self--consistent mode--coupling theory

open access: yes, 2006
We study the dynamics of long-wavelength fluctuations in one-dimensional (1D) many-particle systems as described by self-consistent mode-coupling theory.
Antonio Politi   +12 more
core   +1 more source

Re-Scaling of Energy in the Stringy Charged Black Hole Solutions using Approximate Symmetries

open access: yes, 2010
This paper is devoted to study the energy problem in general relativity using approximate Lie symmetry methods for differential equations. We evaluate second-order approximate symmetries of the geodesic equations for the stringy charged black hole ...
Baikov V.   +11 more
core   +1 more source

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