Numerical solution ofS=1 antiferromagnetic spin chains using a truncated basis expansion

1993 ◽  
Vol 48 (1) ◽  
pp. 303-310 ◽  
Author(s):  
T. Xiang ◽  
G. A. Gehring
Keyword(s):  
Numerical Solution ◽  
Spin Chains ◽  
Basis Expansion ◽  
Antiferromagnetic Spin

CRITICAL EXPONENTS FOR ANTIFERROMAGNETIC SPIN CHAINS OBTAINED FROM BOSONISATION

2012 ◽  
Vol 11 ◽  
pp. 183-190 ◽  
Author(s):  
MARCEL KOSSOW ◽  
PETER SCHUPP ◽  
STEFAN KETTEMANN
Keyword(s):  
Critical Exponent ◽  
Quantum Hall Effect ◽  
Critical Exponents ◽  
Spin Chain ◽  
Quantum Hall ◽  
Spin Chains ◽  
Special Focus ◽  
Heisenberg Spin ◽  
First Order ◽  
Antiferromagnetic Spin

The Heisenberg spin 1/2 chain is revisited in the perturbative RG approach with special focus on the transition of the critical exponents. We give a compact review that first order RG in the couplings is sufficient to derive the exact transition from ν = 1 to ν = 2/3, if the boson radius obtained in the bosonization procedure is replaced by the exact radius obtained in the Bethe approach. We explain the fact, that from the bosonization procedure alone, the critical exponent can not be derived correctly in the isotropic limit Jz → J. We further state that this fact is important if we consider to bosonize the antiferromagnetic super spin chain for the quantum Hall effect.

scholarly journals Nonlinear soliton confinement in weakly coupled antiferromagnetic spin chains

2020 ◽  
Vol 102 (2) ◽  
Author(s):  
H. Lane ◽  
C. Stock ◽  
S.-W. Cheong ◽  
F. Demmel ◽  
R. A. Ewings ◽  
...  
Keyword(s):  
Spin Chains ◽  
Weakly Coupled ◽  
Antiferromagnetic Spin

scholarly journals Dynamics and Transport in Random Antiferromagnetic Spin Chains

2000 ◽  
Vol 84 (15) ◽  
pp. 3434-3437 ◽  
Author(s):  
Kedar Damle ◽  
Olexei Motrunich ◽  
David A. Huse
Keyword(s):  
Spin Chains ◽  
Antiferromagnetic Spin

ONE AND QUASI-ONE DIMENSIONAL SPIN SYSTEMS

2003 ◽  
Vol 18 (33n35) ◽  
pp. 2329-2336 ◽  
Author(s):  
Elisa Ercolessi
Keyword(s):  
Condensed Matter ◽  
Quantum Spin ◽  
Spin Systems ◽  
Spin Chains ◽  
Famous Conjecture ◽  
One Dimensional ◽  
Conformal Field ◽  
Quantum Spin Models ◽  
Low Dimensional ◽  
Antiferromagnetic Spin

Quantum spin models represent one of the most studied examples of application of low-dimensional field theories to condensed matter systems. In this paper we will review some chapters of this hystory, that dates back to the early '80, when Haldane put forward his by now famous conjecture on antiferromagnetic spin chains, and reaches the present days, with the most advanced applications of integrable models and conformal field theory.

Sign in / Sign up

Export Citation Format

Share Document