108 citations · 1.6k across the 73 of their papers we have counts for
7 papers · 1 filter
Natural Extension of Hartree-Fock through extremal -fermion information: Overview and application to the lithium atom
Carlos L. Benavides-Riveros, Christian Schilling
Fermionic natural occupation numbers do not only obey Pauli's exclusion principle but are even stronger restricted by so-called generalized Pauli constraints. Whenever given natura…
Role of the pair potential for the saturation of generalized Pauli constraints
Örs Legeza, Christian Schilling
The dependence of the (quasi-)saturation of the generalized Pauli constraints on the pair potential is studied for ground states of few-fermion systems. For this, we consider spinl…
Generalized Pauli constraints in small atoms
Christian Schilling, Murat Altunbulak, Stefan Knecht +5
The natural occupation numbers of fermionic systems are subject to non-trivial constraints, which include and extend the original Pauli principle. A recent mathematical breakthroug…
Universal upper bounds on the Bose-Einstein condensate and the Hubbard star
Felix Tennie, Vlatko Vedral, Christian Schilling
For hard-core bosons on an arbitrary lattice with sites and independent of additional interaction terms we prove that the hard-core constraint itself already enforces a uni…
Relating correlation measures: the importance of the energy gap
Carlos L. Benavides-Riveros, Nektarios N. Lathiotakis, Christian Schilling +1
The concept of correlation is central to all approaches that attempt the description of many-body effects in electronic systems. Multipartite correlation is a quantum information t…
Reconstructing quantum states from single-party information
Christian Schilling, Carlos L. Benavides-Riveros, Péter Vrana
The possible compatibility of density matrices for single-party subsystems is described by linear constraints on their respective spectra. Whenever some of those quantum marginal c…