In this work, we obtained an analytical relation for the susceptibility of square lattice Ising model. Our investigation is based on average magnetization interrelation which was recently by us. To proceed further, have to make a mathematical conjecture about three-site correlation function appearing in interrelation. We presented conjectured form three spin with relation, $$\langle \sigma _{1}...

The bulk conductivity of a two-dimensional system is studied assuming that quantum interference effects break time-reversal symmetry in the presence strong spin-orbit interaction and lattice potential. study carried out by direct diagonalization order to explore nonlinear-response regime. displays quantized depends on intensity electric field under specific conditions limit at zero shows nonvan...

 In this paper, we investigate the evolution of supercontinuum and femtosecond optical pulses generation through square lattice elliptical-core photonic crystal fiber (PCF) at 1550 nm by using both full-vector multipole method (M.P.M) and novel concrete algorithms: symmetric  split-step Fourier (SSF) and  fourth order Runge Kutta (RK4) which is an accurate method to solve the general  nonlinear...

This paper investigates the core and cladding effective area and splicing loss behavior of a square lattice photonic crystal fiber. These behaviors of square lattice photonic crystal fiber are also compared with the hexagonal photonic crystal fiber. Effective index method is applied for the numerical calculation and the plot has been analyzed by using MATLAB. It has been observed that by choosi...