3 papers
cond-mat.str-el2026
Anisotropic bond-current susceptibilities and real-space current topology in correlated electron systems
Worapon Phatcharasirinawakun, Hiroyuki Yamase
We derive all symmetry-allowed bond-current form factors generated by nearest-neighbor bond-charge interactions on square, triangular, and kagome lattices. We find that the anisotr…
cond-mat.str-el2025
Quantum criticality and non-Fermi liquids: the Wilsonian renormalization group perspective
Mateusz Homenda, Pawel Jakubczyk, Hiroyuki Yamase
We develop a theoretical framework based on the nonperturvative renormalization group (RG) in the one-particle irreducible (Wetterich) formulation to tackle the interplay of couple…
cond-mat.str-el2024
Generalized Hertz action and quantum criticality of two-dimensional Fermi systems
Mateusz Homenda, PaweÅ Jakubczyk, Hiroyuki Yamase
We reassess the structure of the effective action and quantum critical singularities of two-dimensional Fermi systems characterized by the ordering wavevector . B…