From the 2 of 8 linked papers with an AI index.
8 papers
Subhomogeneity and Arveson Boundary of Free Polyhedra
Tim Netzer
We study subhomogeneity of the minimal operator system over a polyhedral cone, or equivalently the size of irreducible Arveson boundary points of free polyhedra. We obtain a comple…
Purifications for Convex Cones
Felix Campidell, Tim Netzer
The paper studies purification of states using the geometry of finite‑dimensional convex cones, proving that interior points of indecomposable homogeneous cones (e.g., Lorentz cone…
Nonunital Operator Systems as Modules in Enriched Category Theory
Tim Netzer, Tobias Fritz
The paper shows that nonunital operator systems can be viewed as modules in an enriched categorical setting, establishing an equivalence with modules over matrix algebras enriched…
Topology of the Set of Entangled State
Maximilian Illmer, Tim Netzer, Michael Wolf +1
We investigate the topology of the set of entangled bipartite density operators acting on . We start by showing that $\mathsf E…
On Subhomogeneous Operator Systems
Markus Dannemüller, Tim Netzer
We study subhomogeneity for finite-dimensional operator systems, and collect and extend characterizations in terms of the -envelope, -maximality, complete positivity, dual…
Lifts of Operator Systems
Markus Dannemüller, Tim Netzer
We transfer the theory of slack operators and sums-of-squares-criteria for lifts from convex cones to operator systems. These allow to study the following question, among others: G…