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arXiv · 1001.3291

Electron pair forming in an integrable model

Jan Naudts·Tobias Verhulst
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Abstract

We consider a lattice model in which phonons scatter with pairs of electrons. All eigenvalues and eigenvectors can be obtained analytically. For a suitable choice of parameters the ground state consists of a Fermi sea of non-interacting electrons, with on top a layer of paired electrons. The binding energy of the electron pairs is partly cancelled by an increased kinetic energy. This results in a gap in the kinetic energy spectrum of the electrons.

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Jan Naudts, Tobias Verhulst. 2010-01-19. Electron pair forming in an integrable model. https://arxiv.org/abs/1001.3291

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