2 papers
cond-mat.str-el2019
Interaction distance in the extended XXZ model
Kristian Patrick, Vincent Caudrelier, Zlatko Papic +1
We employ the interaction distance to characterise the physics of a one-dimensional extended XXZ spin model, whose phase diagram consists of both integrable and non-integrable regi…
quant-ph2018
Efficiency of free auxiliary models in describing interacting fermions: from the Kohn-Sham model to the optimal entanglement model
Kristian Patrick, Marcela Herrera, Jake Southall +2
Density functional theory maps an interacting Hamiltonian onto the Kohn-Sham Hamiltonian, an explicitly free model with identical local fermion densities. Using the interaction dis…