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Symmetry reduction in the augmented space recursion formalism for random binary alloys

Kamal Krishna Saha·Tanusri Saha-Dasgupta·Abhijit Mookerjee·Indra Dusgupta
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Abstract

We present here an efficient method which systematically reduces the rank of the augmented space and thereby helps to implement augmented space recursion for any real calculation. Our method is based on the symmetry of the Hamiltonian in the augmented space and keeping recursion basis vectors in the irreducible subspace of the Hilbert space.

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Kamal Krishna Saha, Tanusri Saha-Dasgupta, Abhijit Mookerjee, Indra Dusgupta. 2003-12-31. Symmetry reduction in the augmented space recursion formalism for random binary alloys. https://doi.org/10.1088/0953-8984%2F16%2F8%2F022

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