These experiments and complementary electronic structure calculations seek to probe the early dissociation dynamics of N2O4 excited in the strong 186 nm ultraviolet absorption band. Laser photons of 199.7, 203, and 205 nm are used to dissociate N2O4 molecules expanded in a free jet. The emission from the dissociating molecules is dispersed in a spectrometer and collected with an optical multich...

Nitromethane is a prototypical example for a molecule that can bind an extra electron in two fundamentally different ways forming dipole-bound as well as valence anions. The classification of the electronic states as dipole-bound or valence does in fact suggest a diabatic viewpoint, and we investigate the coupling between these two electronic states of the nitromethane anion. The coupling eleme...

The transport spectrum of a strongly tunnel-coupled one-electron double quantum dot electrostatically defined in a GaAs/AlGaAs heterostructure is studied. At finite source-drain-voltage we demonstrate the unambiguous identification of the symmetric ground state and the antisymmetric excited state of the double well potential by means of differential conductance measurements. A sizable magnetic ...

We study non-linear axisymmetric pulsations of rotating relativistic stars using a general relativistic hydrodynamics code under the assumption of a conformally flat threemetric. We compare the results of our simulations, in which the spacetime dynamics is coupled to the evolution of the fluid, to previous results performed in the Cowling approximation in which the spacetime dynamics was neglec...

We consider the semiclassical limit of systems of autonomous PDE’s in 1+1 space-time dimensions in a scattering regime. We assume the matrix valued coefficients are analytic in the space variable and we further suppose that the corresponding dispersion relation admits real-valued modes only with one-dimensional polarization subspaces. Hence a BKW-type analysis of the solutions is possible. We t...

1 Overview 2 Introduction 3 Background to MuSR 3.1 Muonium as a radiolabel 4 The magnetic muon 4.1 Transverse-field muon spin rotation spectroscopy (TF-MuSR) 4.2 Avoided level crossing (ALC-MuSR) spectroscopy 4.3 Longitudinal-field muon spin relaxation measurements (LF-MuSRx) 5 Structural studies of radicals 5.1 Substituent effects 5.2 Cyclic systems 5.3 Acetylenes, allenes and butadienes 5.4 C...

High-level, restricted coupled cluster with singles, doubles, and perturbative triples calculations are performed to determine the ground electronic state of KO. In the absence of spin–orbit coupling, we find that the ground state is a S state, with a P state lying just over 200 cm higher in energy. We ascertain that basis set extension, higher-order correlation energy, mass-velocity, and Darwi...

Coupling magnetic elements to metamaterial structures creates hybrid metamolecules with new opportunities. Here we report on the magnetic control of a metamolecule resonance, by utilizing the interaction between a single split ring resonator (SRR) and a magnetic thin film of permalloy. To suppress eddy current shielding, the permalloy films are patterned into arrays of 30–500 μm diameter discs....