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cond-mat.str-el2026
Semiclassical representation of the Hubbard model
Yuki Yamasaki, Hidemaro Suwa, Cristian D. Batista +1
By revisiting the path-integral formulation of the Hubbard model, we propose a theoretical approach based on a semiclassical approximation employing an unconventional coherent-stat…
cond-mat.str-el2026
Superconductivity and fractionalized magnetic excitations in CeCoIn5
Pyeongjae Park, Shang-Shun Zhang, Pietro M. Bonetti +8
Recent experiments on CeCoIn5 -- a prototypical d-wave superconductor -- indicate that its normal state lies near an unconventional quantum critical point (QCP). One intriguing hyp…