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math-ph2025
Reduced Density Matrix Functional Theory And A Reduced Formulation Of Density Functional Theory
Håkon R. Fredheim, Simen Kvaal
A mathematical framework for reduced density matrix functional theory (RDMFT) is proposed. The work is inspired by and generalizes the work by E.H.~Lieb [E.H. Lieb, Int. J. Quant.…
math-ph2013★ 23 cited
Fermion -representability for prescribed density and paramagnetic current density
Erik Tellgren, Simen Kvaal, Trygve Helgaker
The -representability problem is the problem of determining whether or not there exists -particle states with some prescribed property. Here we report an affirmative solution…