Global ETD Search

1	Quantum Fields on Star Graphs with Bound States at the Vertex Boz, Tamer Süleyman January 2011 (has links) A star graph consists of an arbitrary number of segments that are joined at a point which is called the vertex. In this work it is investigated from a pure theoretical point of view, in the framework of quantum field theory. As a concrete physical application, the electric conductance tensor is obtained. In particular it is shown that this conductance behaves differently according to whether the scattering matrix associated with the vertex of the graph has bound-state poles or not. Quantum Field Theory Star Graphs Bound States
2	Pretty Good State Transfer and Fractional Revival in Double Extended Star Graphs Sandall, Kellon G. 12 August 2024 (has links) (PDF) Much research has been done in the realm of quantum walks over networks of qubits. We primarily study a type of graph consisting of a path with two stars connected to the leaves which we call a Double Extended Star. We find that Pretty Good State Transfer can occur in many ways in a Double Extended Star and that Fractional Revival cannot occur in Double Extended Stars except when the length of the path within is one. quantum computing perfect state transfer pretty good state transfer fractional revival double extended star graphs cospectral vertices equitable partitions Physical Sciences and Mathematics