scholarly journals Gutzwiller projected states for the J1−J2 Heisenberg model on the Kagome lattice: Achievements and pitfalls

2021 ◽  
Vol 104 (14) ◽  
Author(s):  
Yasir Iqbal ◽  
Francesco Ferrari ◽  
Aishwarya Chauhan ◽  
Alberto Parola ◽  
Didier Poilblanc ◽  
...  
Keyword(s):  
Heisenberg Model ◽  
Kagome Lattice ◽  
Kagomé Lattice

scholarly journals Thermal Entanglement and Critical Behavior of Magnetic Properties on a Triangulated Kagomé Lattice

10.14311/1344 ◽  
2011 ◽  
Vol 51 (2) ◽  
Author(s):  
N. Ananikian ◽  
L. Ananikyan ◽  
L. Chakhmakhchyan ◽  
A. Kocharian
Keyword(s):  
Magnetic Field ◽  
Heisenberg Model ◽  
Quantum Phase Transitions ◽  
Exchange Interactions ◽  
Effective Field ◽  
Threshold Temperature ◽  
Kagome Lattice ◽  
Thermal Entanglement ◽  
Kagomé Lattice ◽  
Bogoliubov Inequality

The equilibrium magnetic and entanglement properties in a spin-1/2 Ising-Heisenberg model on a triangulated Kagomé lattice are analyzed by means of the effective field for the Gibbs-Bogoliubov inequality. The calculation is reduced to decoupled individual (clusters) trimers due to the separable character of the Ising-type exchange interactions between the Heisenberg trimers. The concurrence in terms of the three qubit isotropic Heisenberg model in the effective Ising field in the absence of a magnetic field is non-zero. The magnetic and entanglement properties exhibit common (plateau, peak) features driven by a magnetic field and (antiferromagnetic) exchange interaction. The (quantum) entangled and non-entangled phases can be exploited as a useful tool for signalling the quantum phase transitions and crossovers at finite temperatures. The critical temperature of order-disorder coincides with the threshold temperature of thermal entanglement.

scholarly journals Semiclassical spin dynamics of the antiferromagnetic Heisenberg model on the kagome lattice

2014 ◽  
Vol 90 (6) ◽  
Author(s):  
Mathieu Taillefumier ◽  
Julien Robert ◽  
Christopher L. Henley ◽  
Roderich Moessner ◽  
Benjamin Canals
Keyword(s):  
Heisenberg Model ◽  
Spin Dynamics ◽  
Kagome Lattice ◽  
Kagomé Lattice ◽  
Antiferromagnetic Heisenberg Model

scholarly journals Variational Monte Carlo study of a chiral spin liquid in the extended Heisenberg model on the kagome lattice

2015 ◽  
Vol 91 (4) ◽  
Author(s):  
Wen-Jun Hu ◽  
Wei Zhu ◽  
Yi Zhang ◽  
Shoushu Gong ◽  
Federico Becca ◽  
...  
Keyword(s):  
Monte Carlo ◽  
Heisenberg Model ◽  
Monte Carlo Study ◽  
Spin Liquid ◽  
Kagome Lattice ◽  
Variational Monte Carlo ◽  
Kagomé Lattice
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