scholarly journals Long-Range Spatial Correlations of Eigenfunctions in Quantum Disordered Systems

1998 ◽  
Vol 80 (9) ◽  
pp. 1944-1947 ◽  
Author(s):  
V. N. Prigodin ◽  
B. L. Altshuler
2014 ◽  
Vol 89 (6) ◽  
Author(s):  
N. de Sousa ◽  
J. J. Sáenz ◽  
A. García-Martín ◽  
L. S. Froufe-Pérez ◽  
M. I. Marqués

2013 ◽  
Vol 39 (8) ◽  
pp. 615-623 ◽  
Author(s):  
D. G. Vasil’kov ◽  
Yu. V. Kholnov ◽  
S. V. Shchepetov

2012 ◽  
Vol 190 ◽  
pp. 31-34
Author(s):  
Dmitry N. Kulikov ◽  
Pavel V. Prudnikov

The simultaneous effect of non-equilibrium initial states and correlation betweendefects of the structure on the evolution of anisotropic disordered systems at the critical pointwas analyzed. The field theory description of the non-equilibrium critical behavior of three-dimensional disordered systems with the long-range correlated defects was given and the dy-namical critical exponent of the short-time evolution was calculated in the two-loop approxima-tion without the use of the "-expansion. The values of the dynamical critical exponent obtainedby using various methods for summing asymptotic series were compared with the results ofthe computer simulation of the non-equilibrium critical behavior of the three-dimensional dis-ordered Ising model in the short-time regime.


2022 ◽  
Vol 6 (1) ◽  
Author(s):  
Michael Zaiser ◽  
Ronghai Wu

AbstractThe current interest in compositionally complex alloys including so called high entropy alloys has caused renewed interest in the general problem of solute hardening. It has been suggested that this problem can be addressed by treating the alloy as an effective medium containing a random distribution of dilatation and compression centers representing the volumetric misfit of atoms of different species. The mean square stresses arising from such a random distribution can be calculated analytically, their spatial correlations are strongly anisotropic and exhibit long-range tails with third-order power law decay (Geslin and Rodney 2021; Geslin et al. 2021). Here we discuss implications of the anisotropic and long-range nature of the correlation functions for the pinning of dislocations of arbitrary orientation. While edge dislocations are found to follow the standard pinning paradigm, for dislocations of near screw orientation we demonstrate the co-existence of two types of pinning energy minima.


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