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Pairing correlations in quantum systems: algebraic and variational approaches
The description of the higher-dimensional Hubbard model in terms of pair-based wavefunctions is investigated. Possible extensions of the pairing correlations as introduced in the Bethe ansatz for the integrable Richardson-Gaudin model are considered for a possible use in a numerical implementation of a variational method for the 2D Hubbard model.
Date:1 Oct 2014 → 30 Sep 2018
Keywords:Hubbard model
Disciplines:Quantum physics, Classical physics, Applied mathematics in specific fields, Astronomy and space sciences, Condensed matter physics and nanophysics, Mathematical physics, Materials physics