Level statistics in a Heisenberg chain with random magnetic field

2002 ◽  
Vol 66 (5) ◽  
Author(s):  
Y. Avishai ◽  
J. Richert ◽  
R. Berkovits
Keyword(s):  
Magnetic Field ◽  
Heisenberg Chain ◽  
Level Statistics ◽  
Random Magnetic Field

Two-dimensional electron in a random magnetic field

1994 ◽  
Vol 49 (5) ◽  
pp. 3340-3346 ◽  
Author(s):  
Armelle Barelli ◽  
Robert Fleckinger ◽  
Timothy Ziman
Keyword(s):  
Magnetic Field ◽  
Two Dimensional ◽  
Dimensional Electron ◽  
Random Magnetic Field

scholarly journals Effective Hamiltonian for a half-filled asymmetric ionic Hubbard chain with alternating on-site interaction

2016 ◽  
Vol 30 (03) ◽  
pp. 1550260 ◽  
Author(s):  
I. Grusha ◽  
M. Menteshashvili ◽  
G. I. Japaridze
Keyword(s):  
Magnetic Field ◽  
Nearest Neighbor ◽  
Effective Hamiltonian ◽  
Heisenberg Chain ◽  
Spin Hamiltonian ◽  
Effective Spin ◽  
One Dimensional ◽  
The One ◽  
Strong Repulsion ◽  
Ionic Hubbard Model

We derive an effective spin Hamiltonian for the one-dimensional half-filled asymmetric ionic Hubbard model (IHM) with alternating on-site interaction in the limit of strong repulsion. It is shown that the effective Hamiltonian is that of a spin S = 1/2 anisotropic XXZ Heisenberg chain with alternating next-nearest-neighbor (NNN) and three-spin couplings in the presence of a uniform and a staggered magnetic field.

scholarly journals Cosmic Rays in a Random Magnetic Field: Breakdown of the Quasilinear Derivation of the Kinetic Equation

1973 ◽  
Vol 180 ◽  
pp. 239 ◽  
Author(s):  
Thomas B. Kaiser ◽  
Frank C. Jones ◽  
Thomas J. Birmingham
Keyword(s):  
Magnetic Field ◽  
Kinetic Equation ◽  
Cosmic Rays ◽  
Random Magnetic Field
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