New approach to surface magnon states in the semi-infinite antiferromagnetic Heisenberg model with biquadratic exchange and single-ion anisotropy

1996 ◽  
Vol 219 (1-2) ◽  
pp. 121-130 ◽  
Author(s):  
Andjelka Ćelić ◽  
Darko Kapor ◽  
Mario Škrinjar ◽  
Stanoje Stojanović
Keyword(s):  
Heisenberg Model ◽  
New Approach ◽  
Biquadratic Exchange ◽  
Antiferromagnetic Heisenberg Model

scholarly journals Critical behavior of the antiferromagnetic Heisenberg model on a stacked triangular lattice

1994 ◽  
Vol 4 (2) ◽  
pp. 181-186 ◽  
Author(s):  
T. Bhattacharya ◽  
A. Billoire ◽  
R. Lacaze ◽  
Th. Jolicoeur
Keyword(s):  
Critical Behavior ◽  
Triangular Lattice ◽  
Heisenberg Model ◽  
Antiferromagnetic Heisenberg Model

A renormalization group study of the 2D antiferromagnetic Heisenberg model

1993 ◽  
Vol 73 (10) ◽  
pp. 6102-6104 ◽  
Author(s):  
H. Q. Lin ◽  
D. K. Campbell ◽  
C. Y. Pan
Keyword(s):  
Renormalization Group ◽  
Heisenberg Model ◽  
Antiferromagnetic Heisenberg Model

scholarly journals Theta function identities from optical neural network transformations

1993 ◽  
Vol 16 (4) ◽  
pp. 805-810
Author(s):  
E. Elizalde ◽  
A. Romeo
Keyword(s):  
Neural Network ◽  
Theta Function ◽  
Heisenberg Model ◽  
Symmetric Functions ◽  
New Approach ◽  
Jacobi Theta Function ◽  
Cylindrically Symmetric ◽  
Optical Neural Network ◽  
Theta Function Identities

We take a new approach to the generation of Jacobi theta function identities. It is complementary to the procedure which makes use of the evaluation of Parseval-like identities for elementary cylindrically-symmetric functions on computer holograms. Our method is more simple and explicit than this one, which was an outcome of the construction of neurocomputer architectures through the Heisenberg model.

EFFECTIVE THEORY FOR HIGH-TEMPERATURE SUPERCONDUCTIVITY BASED ON DUALITY AT S = 1/2 ANTIFERROMAGNETIC HEISENBERG MODEL

2005 ◽  
Vol 19 (12) ◽  
pp. 571-579 ◽  
Author(s):  
TAKAO MORINARI
Keyword(s):  
High Temperature ◽  
Heisenberg Model ◽  
High Temperature Superconductivity ◽  
High Temperature Superconductors ◽  
Parent Compound ◽  
High Energy ◽  
Field Application ◽  
Effective Theory ◽  
Dirac Fermions ◽  
Antiferromagnetic Heisenberg Model

It is argued that in two-dimension duality connects the CP1 representation of the S = 1/2 antiferromagnetic Heisenberg model with the Schwinger model in which Dirac fermions are interact via a U(1) gauge field. Application of this duality to underdoped high-temperature superconductors suggests that the high-energy fermionic excitation at the Mott insulating parent compound turns out to be a low-lying excitation in the spin disordered regime. A picture for high-temperature superconductivity is proposed.

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