Results 21 to 30 of about 294,004 (295)

Correlation-Strength Driven Anderson Metal-Insulator Transition [PDF]

open access: yes, 2012
The possibility of driving an Anderson metal-insulator transition in the presence of scale-free disorder by changing the correlation exponent is numerically investigated.
Alexander Croy   +6 more
core   +2 more sources

Critical Exponents and Elementary Particles [PDF]

open access: yesCommunications in Mathematical Physics, 1977
Particles are shown to exist for a.e. value of the mass in single phase φ4 lattice and continuum field theories and nearest neighbor Ising models. The particles occur in the form of poles at imaginary (Minkowski) momenta of the Fourier transformed two point function.
Glimm, J., Jaffe, A.
openaire   +2 more sources

Critical exponents from cluster coefficients [PDF]

open access: yesPhysical Review E, 2009
11 pages, 6 figures, submitted to ...
Rotman, Z., Eisenberg, E.
openaire   +3 more sources

Exponent-critical primitive graphs and the Kronecker product

open access: yesElectronic Journal of Graph Theory and Applications, 2019
A directed graph is primitive of exponent t if it contains walks of length t between all pairs of vertices, and t is minimal with this property. Moreover, it is exponent-critical if the deletion of any arc results in an imprimitive graph or in a ...
Olga O'Mahony, Rachel Quinlan
doaj   +1 more source

Activating critical exponent spectra with a slow drive

open access: yesPhysical Review Research, 2020
We uncover an aspect of the Kibble-Zurek phenomenology, according to which the spectrum of critical exponents of a classical or quantum phase transition is revealed, by driving the system slowly in directions parallel to the phase boundary.
Steven Mathey, Sebastian Diehl
doaj   +1 more source

Dynamical selection of critical exponents [PDF]

open access: yesPhysical Review E, 2016
v2: Several misprints corrected, appendix on toy model rendered more relevant.
openaire   +3 more sources

Critical Exponents in Zero Dimensions [PDF]

open access: yesJournal of Statistical Physics, 2012
In the vicinity of the onset of an instability, we investigate the effect of colored multiplicative noise on the scaling of the moments of the unstable mode amplitude. We introduce a family of zero dimensional models for which we can calculate the exact value of the critical exponents $ _m$ for all the moments.
Alexakis, A., Pétrélis, F.
openaire   +3 more sources

Solutions to Kirchhoff equations with critical exponent

open access: yesArab Journal of Mathematical Sciences, 2016
In this paper, we study the following problems {Δ2u−M(∫Ω|∇u|2dx)Δu=λf(x,u)+|u|2∗−2uinΩu=Δu=0on∂Ω, where 2∗=2NN−4 is the critical exponent. Under some conditions on M and f, we prove the existence of nontrivial solutions by using variational methods.
El Miloud Hssini   +2 more
doaj   +1 more source

Existence of solution for a quasilinear elliptic Neumann problem involving multiple critical exponents

open access: yesBoundary Value Problems, 2020
In this paper, we study the Neumann boundary value problem to a quasilinear elliptic equation with the critical Sobolev exponent and critical Hardy–Sobolev exponent, and prove the existence of nontrivial nonnegative solution by means of variational ...
Yuanxiao Li, Xiying Wang
doaj   +1 more source

On perturbation theory and critical exponents for self-similar systems

open access: yesEuropean Physical Journal C: Particles and Fields, 2021
Gravitational critical collapse in the Einstein-axion-dilaton system is known to lead to continuous self-similar solutions characterized by the Choptuik critical exponent $$\gamma $$ γ . We complete the existing literature on the subject by computing the
Ehsan Hatefi, Adrien Kuntz
doaj   +1 more source

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