Ising Model On A Fibonacci Lattice with Magnetic Field

We represent a general procedure for calculating the partition function of an Ising model on a one dimensional Fibonacci lattice in presence of magnetic field.This partition function can be written as a sum of partition functions of usual open Ising chains in presence of magnetic field with coefficients having Fibonacci symmetries.An exact expression for the partition function of the usual open Ising model is found.We observe that "Mirror Symmetry" is a characteristic property of all Fibonacci generations.Further nth and (n+6)th generations have the same topology.We have also established a recurrence relation among partition functions of different Fibonacci generations from nth to (n+6)th.