scholarly journals ICET – A Python Library for Constructing and Sampling Alloy Cluster Expansions

2019 ◽  
Vol 2 (7) ◽  
pp. 1900015 ◽  
Author(s):  
Mattias Ångqvist ◽  
William A. Muñoz ◽  
J. Magnus Rahm ◽  
Erik Fransson ◽  
Céline Durniak ◽  
...  
Keyword(s):  
Cluster Expansions ◽  
Alloy Cluster

scholarly journals Supersymmetric Cluster Expansions and Applications to Random Schrödinger Operators

2021 ◽  
Vol 24 (1) ◽  
Author(s):  
Luca Fresta
Keyword(s):  
Density Of States ◽  
Local Density ◽  
Schrödinger Operators ◽  
Random Schrödinger Operators ◽  
Schrodinger Operators ◽  
Local Density Of States ◽  
Weak Disorder ◽  
Cluster Expansions ◽  
Strong Disorder ◽  
Lifshitz Tail

AbstractWe study discrete random Schrödinger operators via the supersymmetric formalism. We develop a cluster expansion that converges at both strong and weak disorder. We prove the exponential decay of the disorder-averaged Green’s function and the smoothness of the local density of states either at weak disorder and at energies in proximity of the unperturbed spectrum or at strong disorder and at any energy. As an application, we establish Lifshitz-tail-type estimates for the local density of states and thus localization at weak disorder.

NMR in powders and single crystals of the metal-alloy cluster [HNi

1997 ◽  
Vol 40 (1) ◽  
pp. 559 ◽  
Author(s):  
H.B. Brom ◽  
J.J. van der Klink ◽  
F.C. Fritschij ◽  
L.J. de Jongh ◽  
R. Della Pergola ◽  
...  
Keyword(s):  
Single Crystals ◽  
Metal Alloy ◽  
Alloy Cluster

scholarly journals Simple Derivation of Cluster Expansions for Many-Fermion Systems

1965 ◽  
Vol 34 (5) ◽  
pp. 726-733 ◽  
Author(s):  
J. W. Clark ◽  
D. Chakkalakal ◽  
P. Westhaus
Keyword(s):  
Simple Derivation ◽  
Cluster Expansions ◽  
Fermion Systems
Sign in / Sign up

Export Citation Format

Share Document