29 citations · 112 across the 11 of their papers we have counts for
12 papers
Stratification of the space of density matrices via invariant theory and Uhlmann's connection
Howy Jordan, Markus J. Pflaum, Gerd Rudolph
The space of density matrices is the full state space of an -level quantum system. While it has been asserted in the literature on quantum information theory that de…
Quasicharacters, recoupling calculus and costratifications of lattice quantum gauge theory
P. D. Jarvis, G. Rudolph, M. Schmidt
We study the algebra of invariant representative functions over the N-fold Cartesian product of copies of a compact Lie group G modulo the action of conjugation by the diagonal sub…
A gauge model for quantum mechanics on a stratified space
J. Huebschmann, G. Rudolph, M. Schmidt
In the Hamiltonian approach on a single spatial plaquette, we construct a quantum (lattice) gauge theory which incorporates the classical singularities. The reduced phase space is…
On the Topology of the Reduced Classical Configuration Space of Lattice QCD
S. Charzyński, G. Rudolph, M. Schmidt
We study the topological structure of the quotient of by diagonal conjugation. This is the simplest nontrivial example for the classical reduced configuration s…
Charge Superselection Sectors for QCD on the Lattice
J. Kijowski, G. Rudolph
We study quantum chromodynamics (QCD) on a finite lattice in the Hamiltonian approach. First, we present the field algebra as comprising a gluonic part, with…
Charge Superselection Sectors for Scalar QED on the Lattice
J. Kijowski, G. Rudolph, C. Śliwa
The lattice model of scalar quantum electrodynamics (Maxwell field coupled to a complex scalar field) in the Hamiltonian framework is discussed. It is shown that the algebra of obs…