Showing 2026Show all
3 papers · 1 filter
cond-mat.stat-mech2026
Polylogarithmic Structure of Bragg Diffraction in Finite-Coherence Lattices
Evangelos G. Filothodoros
We develop a polylogarithmic structure for Bragg diffraction based on a weighted multi-plane interference model. Within this kind of construction, the scattering amplitude is expre…
hep-th2026
Discrete Laplacian Structure and Kernel Reduction of the Gap Equation in Gross--Neveu Model at Imaginary Chemical Potential
Evangelos G. Filothodoros
We observe a remarkable mathematical structure in the gap equations of the large- Gross--Neveu model at imaginary chemical potential in odd spacetime dimensions . We s…
cond-mat.quant-gas2026
Bose-Fermi Mapping in Hubbard Models at Imaginary Chemical Potential and Phase-Induced Fermionization
Evangelos G. Filothodoros
We find a mapping between the attractive Fermi-Hubbard model and the repulsive Bose-Hubbard model at finite temperature and at imaginary chemical potential . We show, by usin…