46 citations · 316 across the 21 of their papers we have counts for
14 papers · 1 filter
Enhanced sensitivity to variations of fundamental constants in highly charged molecules from analytic perturbation theory
Carsten Zülch, Konstantin Gaul, Robert Berger
Quasi-forbidden electronic transitions in atoms and vibronic transitions between quasi-degenerate states in molecules serve as powerful probes of hypothetical temporal variations o…
Towards detection of molecular parity violation via chiral co-sensing: the H/P model system
Erik Van Dyke, James Eills, Kirill Sheberstov +10
Fundamental weak interactions have been shown to violate parity in both nuclear and atomic systems. However, observation of parity violation in a molecular system has proven an elu…
Quantum electrodynamic corrections for molecules: Vacuum polarisation and electron self energy in a two-component relativistic framework
Kjell Janke, Andrés Emilio Wedenig, Peter Schwerdtfeger +2
Vacuum polarisation (VP) and electron self energy (SE) are implemented and evaluated as quantum electrodynamic (QED) corrections in a (quasi-relativistic) two-component zeroth orde…
Relativistic and quantum electrodynamics effects on NMR shielding tensors of Tl ( = H, F, Cl, Br, I, At) molecules
Karol Kozioł, I. Agustín Aucar, Konstantin Gaul +2
Results of relativistic calculations of nuclear magnetic resonance shielding tensors () for the thallium monocation (Tl), thallium hydride (TlH) and thallium halides (TlF, T…
Stopping mass-selected alkaline-earth metal monofluoride beams of high energy via formation of unusually stable anions
Konstantin Gaul, Ronald F. Garcia Ruiz, Robert Berger
Direct laser-coolability and a comparatively simple electronic structure render alkaline-earth metal monofluoride molecules versatile laboratories for precision tests of fundamenta…
Towards detection of molecular parity violation by microwave spectroscopy of CpRe(CH)(CO)(NO)
Nityananda Sahu, Konstantin Gaul, Anke Wilm +2
Parity-violating differences in rotational constants of a chiral 5d transition metal complex, that was previously experimentally well-characterised by broad-band microwave spectros…
Relativistic and QED corrections to one-bond indirect nulcear spin-spin couplings in X and X ions (X = Zn, Cd, Hg)
Mariano Colombo Jofré, Karol Kozioł, I. Agustín Aucar +3
The indirect nuclear spin-spin coupling tensor, , between mercury nuclei in Hg-containing systems can be of the order of few kHz and one of the largest measured. We cond…
Cool molecular highly charged ions for precision tests of fundamental physics
Carsten Zülch, Konstantin Gaul, Steffen M. Giesen +2
Molecules and atomic highly charged ions provide powerful low-energy probes of the fundamental laws of physics: Polar molecules possess internal fields suitable to enhance fundamen…
Quasi-relativistic approach to analytical gradients of parity violating potentials
Sascha A Brück, Nityananda Sahu, Konstantin Gaul +1
An analytic gradient approach for the computation of derivatives of parity-violating (PV) potentials with respect to displacements of the nuclei in chiral molecules is described an…
Parity nonconserving interactions of electrons in chiral molecules with cosmic fields
Konstantin Gaul, Mikhail G. Kozlov, Timur A. Isaev +1
Pseudoscalar or pseudovector cosmic fields, that serve as a source of parity () violation, are invoked in different models for cold dark matter or in the standard mode…
Toolbox approach for quasi-relativistic calculation of molecular properties for precision tests of fundamental physics
Konstantin Gaul, Robert Berger
A generally applicable approach for the calculation of relativistic one-electron properties with two-component wave functions is presented. The formalism is explicitly evaluated fo…
Ab initio study of parity and time-reversal violation in laser-coolable triatomic molecules
Konstantin Gaul, Robert Berger
Electronic structure enhancement factors of simultaneous parity and time-reversal violation (-violation) caused by an electric dipole moment of the electron (eEDM) a…
Systematic study of relativistic and chemical enhancements of -odd effects in polar diatomic radicals
Konstantin Gaul, Sebastian Marquardt, Timur Isaev +1
Polar diatomic molecules that have, or are expected to have a -ground state are studied systematically with respect to simultaneous violation of parity and…
Zeroth order regular approximation approach to electric dipole moment interactions of the electron
Konstantin Gaul, Robert Berger
A quasi-relativistic two-component approach for an efficient calculation of -odd interactions caused by a permanent electric dipole moment of the electron (eEDM) is…