28 citations · 64 across the 8 of their papers we have counts for
8 papers
Superluminal optical pulse propagation in nonlinear coherent media
R. G. Ghulghazaryan, Yu. P. Malakyan
The propagation of light-pulse with negative group-velocity in a nonlinear medium is studied theoretically. We show that the necessary conditions for these effects to be observable…
Partition function zeros of the one-dimensional Potts model: The recursive method
R. G. Ghulghazaryan, N. S. Ananikian
The Yang-Lee, Fisher and Potts zeros of the one-dimensional Q-state Potts model are studied using the theory of dynamical systems. An exact recurrence relation for the partition fu…
Yang-Lee Zeros of the Q-state Potts Model on Recursive Lattices
R. G. Ghulghazaryan, N. S. Ananikian, P. M. A. Sloot
The Yang-Lee zeros of the Q-state Potts model on recursive lattices are studied for non-integer values of Q. Considering 1D lattice as a Bethe lattice with coordination number equa…
Yang-Lee and Fisher Zeros of Multisite Interaction Ising Models on the Cayley-type Lattices
N. S. Ananikian, R. G. Ghulghazaryan
A general analytical formula for recurrence relations of multisite interaction Ising models in an external magnetic field on the Cayley-type lattices is derived. Using the theory o…
Exact solution of a Z(4) gauge Potts model on planar lattices
N. S. Ananikian, R. G. Ghulghazaryan, N. Sh. Izmailian +1
The exact solution of a general Z(4) gauge Potts model with a single and double plaquette representation of the action is found on a subspace of gauge-coupling parameters on the sq…
Correlation Functions of Multisite Interaction Spin-S models on the Bethe-like Lattices
R. G. Ghulghazaryan
Multisite interaction spin-S models in an external magnetic field are studied recursively on the Bethe-like lattices. The transfer-matrix method is extended to calculate exactly th…
Thermodynamic chaos and infinitely many critical exponents in the Baxter-Wu model
S. K. Dallakyan, N. S. Ananikian, R. G. Ghulghazaryan
The mechanisms leading to thermodynamic chaos in the Baxter-Wu model is considered. We compare the Baxter-Wu model with triangular antiferromagnets and discuss the difficulties rel…
Correlation Functions of the Ising Model with Multisite Interaction on the Husimi Lattice
N. S. Ananikian, R. G. Ghulghazaryan, N. Sh. Izmailian
We consider a general spin-1/2 Ising model with multisite interaction on the Husimi lattice with the coordination number q and derive an analytical expression of correlation functi…