… in the theory of localization, underlies this transition to chaos. … time” t, which characterizes
level correlations in the many-body … of the theory of WL and periodic-orbit theory of chaos and …

… by a beautiful periodic orbit theory application by the late Fritz … to express the two-level
correlation function in the Poisson-… universal and to what extend the particular quantally chaotic …

… index of each scarring periodic orbit, which is necessary for … A cornerstones in the development
of quantum chaos is level … Haake, Periodic-orbit theory of universal level correlations in …

… systems is a defining feature of quantum chaos. We study such correlations in terms of the …
this emergent behavior comparable to the semiclassical periodic orbit–based picture in single…

… question of quantum chaos, but a rigorous quantum notion of … -dependent analogues of
periodic orbit theory, for ensembles of … While correlation functions of local observables have been …

… -matrix correlations of both SP and MB quantum chaotic … foundations for universal aspects
of quantum chaotic MB systems, ie … foundations of periodic-orbit theory in quantum chaos [17]: …

… in a typical quantum chaotic spectrum. The degree of chaos then depends on the coupling
strength. Crucially, as we show in this work, there cannot exist a universal result that allows …

… Thus, the universal properties of quantum chaos associated … approached an unstable periodic
orbit when moving forward and … chaos by exploring the effect of quantum correlation in the …

… Instead of defining all the correlation functions etc., we shall … present) we find the universal
statistical behaviour of the … level spacing and T is the period of the shortest periodic orbit. …

… For chaotic quantum systems, access to individual energy levels (… to resummed expressions
over periodic orbit contributions towards … of measures for (non-universal) long-range spectral …