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math-ph2014
Upper bounds on the charge susceptibility of many-electron systems coupled to the quantized radiation field
Tadahiro Miyao
We extend the Kubo-Kishi theorem concerning the charge susceptibility of the Hubbard model in the following way: (i) The electron-photon interaction is taken into account. (ii) Not…
math-ph2014★ 4 cited
Rigorous results concerning the Holstein--Hubbard model
Tadahiro Miyao
The Holstein model has been widely accepted as a model comprising electrons interacting with phonons; analysis of this model's ground states was accomplished two decades ago. Howev…