The spin contribution to the form factor of quantum graphs
2003en
ABI
Abstract
Following the quantisation of a graph with the Dirac operator (spin-1=2) we explain how additional weights in the spectral form factor K() due to spin propagation around orbits produce higher order terms in the small- asymptotics in agreement with symplectic random matrix ensembles. We determine conditions on the group of spin rotations sucient to generate CSE statistics.
Citations and references
Cited by 30 references