G Nandhini
Articles written in Journal of Chemical Sciences
Volume 121 Issue 5 September 2009 pp 595-599
Partition function of nearest neighbour Ising models: Some new insights
G Nandhini M V Sangaranarayanan
The partition function for one-dimensional nearest neighbour Ising models is estimated by summing all the energy terms in the Hamiltonian for N sites. The algebraic expression for the partition function is then employed to deduce the eigenvalues of the basic $2 \times 2$ matrix and the corresponding Hermitian Toeplitz matrix is derived using the Discrete Fourier Transform. A new recurrence relation pertaining to the partition function for two-dimensional Ising models in zero magnetic field is also proposed.
Volume 124 Issue 1 January 2012 pp 105-113
M Vinothkumar G Nandhini M V Sangaranarayanan
The partition function for two-dimensional nearest neighbour Ising model in a non-zero magnetic field have been derived for a finite square lattice of 16, 25, 36 and 64 sites with the help of
Volume 135, 2023
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