Using Bogoliubov’s inequality we rigorously show that the multiorbital Hubbard model with narrow bands, even in the presence of spin–orbit coupling, does not exhibit long-range nematic order, in low dimensions. This result holds at any finite temperature for both repulsive and attractive Coulomb interactions, with and without spin–orbit coupling.
Nematic order in a degenerate Hubbard model with spin–orbit coupling
GUARNACCIA, GIUSEPPE;NOCE, Canio
2013
Abstract
Using Bogoliubov’s inequality we rigorously show that the multiorbital Hubbard model with narrow bands, even in the presence of spin–orbit coupling, does not exhibit long-range nematic order, in low dimensions. This result holds at any finite temperature for both repulsive and attractive Coulomb interactions, with and without spin–orbit coupling.File in questo prodotto:
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