2 papers
cond-mat.stat-mech2026
Families of planar lattices with arbitrarily high for the ferromagnetic Ising model
Davidson Noby Joseph, Connor M. Walsh, Igor Boettcher
We construct families of periodic tessellations of the plane with arbitrarily high critical temperature, , for the classical nearest-neighbor ferromagnetic Ising model.…
cond-mat.str-el2026
Coherent-state ansatz for the Holstein polaron in one and two dimensions
Connor M. Walsh, Igor Boettcher, Frank Marsiglio
The Holstein model often serves as an archetype for electron-phonon interactions and polaron formation in solids. However, precise descriptions of the Holstein polaron are difficul…