4 papers
A nonstandard statistics for strongly correlated systems: Two simple examples
Józef SpaÅek, Piotr Kuterba, Mateusz Wójcik +4
We discuss two different cases of strongly correlated fermions statistics. The first of them is the non-Fermi liquid (NFL) case, , that of fermions with exclusion of doubly o…
Strongly correlated quantum matter: t--J model, real-space pairing, spin-dependent masses, and atomicity in chemical bond and nanosystems
Józef SpaÅek
I critically overview my research on strongly correlated fermion systems for almost five decades. It concentrated on: (i) the first derivation of what is now called the t--J model,…
Role of Kinetic Exchange and Coulomb Interaction in Bonding of Hydrogen Molecular Systems and Excited States
Maciej Hendzel, Józef SpaÅek
We present a detailed investigation of the electronic structure and bonding characteristics of hydrogen-based molecular systems (\ch{H2+}, \ch{H2}, \ch{H2-}) using the Exact Diagon…
Exact Entanglement correlation complements the chemical bond description
Józef SpaÅek, Maciej Hendzel
We analyze the properties of the exact solution obtained by us recently for the extended Hetiler-London model for chemical bonding which has an analytic form. The emphasis is put o…