585 citations · 1.1k across the 46 of their papers we have counts for
Showing 2021 · math-phShow all
2 papers · 2 filters
math-ph2021
Bose-Einstein Condensation for Lattice Bosons
Tohru Koma
We present a class of models of interacting lattice bosons which show complete Bose-Einstein condensation for the ground state.
math-ph2021★ 2 cited
Dispersion Relations of Nambu-Goldstone Modes
Tohru Koma
We study the energy-momentum relations of the Nambu-Goldstone modes in quantum antiferromagnetic Heisenberg models on a hypercubic lattice. This work is a sequel to the previous se…