3 papers
cond-mat.supr-con2026
A Superconducting Peierls Instability
Pramodh Senarath Yapa, Joseph Maciejko, Frank Marsiglio +1
The Peierls instability is a foundational mechanism in condensed matter physics, showing how the electron--phonon interaction can transform a simple metal into an insulating state…
quant-ph2026
Analytical Solution to the Kronig-Penney Model with Harmonic Oscillator Wells: Insights to Tight-Binding
Christopher Moore, Frank Marsiglio
The celebrated Kronig-Penney model traditionally has been formulated with square well potentials representing atomic centres. Here, we use a slightly more realistic potential, the…
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…