Zusammenfassung
Classical and quantum conduction on a bond-diluted Bethe lattice is
considered. The bond dilution is subject to the constraint that every occupied
bond must have at least \$k-1\$ neighboring occupied bonds, i.e. \$k\$-core
diluted. In the classical case, we find the onset of conduction for \$k=2\$ is
continuous, while for \$k=3\$, the onset of conduction is discontinuous with the
geometric random first-order phase transition driving the conduction
transition. In the quantum case, treating each occupied bond as a random
scatterer, we find for \$k=3\$ that the random first-order phase transition in
the geometry also drives the onset of quantum conduction giving rise to a new
universality class of Anderson localization transitions.
Nutzer