A Knot Theoretic Extension of the Bloch Sphere Representation for Qubits in Hilbert Space and Its Application to Contextuality and Many-Worlds Theories. - Stefan Heusler; Paul Schlummer; Malte Ubben (Symmetry, 2020)

The Topological Origin of Quantum Randomness. - Stefan Heusler; Paul Schlummer; Malte Ubben (Symmetry, 2021)