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Showing 2015 · cond-mat.str-elShow all
3 papers · 2 filters
cond-mat.str-el2015★ 4 cited
Effect of site dilution in the two-dimensional attractive Hubbard model
Saurabh Pradhan, G. Venketeswara Pai
We study the percolative superconducting transition as the density of randomly placed attractive centers grows in a host metal. Employing the Hubbard-Stratanovich transformation fo…
cond-mat.str-el2015★ 15 cited
The Holstein-Hubbard Model at Half-filling : A Static Auxiliary Field Study
Saurabh Pradhan, G. Venketeswara Pai
We study the Holstein-Hubbard model at half filling to explore the ordered phases such as the charge density wave and antiferromagnet. The Coulomb interaction is rewritten in terms…
cond-mat.str-el2015★ 15 cited
Mott-Hubbard transition and spin-liquid state on the pyrochlore lattice
Nyayabanta Swain, Rajarshi Tiwari, Pinaki Majumdar
The pyrochlore lattice involves corner sharing tetrahedra and the resulting geometric frustration is believed to suppress any antiferromagnetic order for Mott insulators on this st…