46 citations · 316 across the 21 of their papers we have counts for
23 papers
Genuine Molecular Effects in Bound-State Quantum Electrodynamics
Kjell Janke, Konstantin Gaul, I. Agustín Aucar +5
Quantum electrodynamics (QED) currently features prominently at the precision frontier in describing the structure of atoms and molecules. Dominant QED effects are governed by the…
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…
Laser spectroscopy and CP-violation sensitivity of actinium monofluoride
M. Athanasakis-Kaklamanakis, M. Au, A. Kyuberis +39
The apparent invariance of the strong nuclear force under combined charge conjugation and parity (CP) remains an open question in modern physics. Precision experiments with heavy a…
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…
Ionization potential of radium monofluoride
S. G. Wilkins, H. A. Perrett, S. M. Udrescu +43
The ionization potential (IP) of radium monofluoride (RaF) was measured to be 4.969(2)[10] eV, revealing a relativistic enhancement in the series of alkaline earth monofluorides. T…
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…
-violation sensitivity of closed-shell radium-containing polyatomic molecular ions
Konstantin Gaul, Nicholas R. Hutzler, Phelan Yu +3
Closed-shell atoms and molecules such as Hg or TlF provide some of the best low-energy tests of hadronic -violation which is considered to be a necessary ingredient t…
Global analysis of CP-violation in atoms, molecules and role of medium-heavy systems
Konstantin Gaul, Robert Berger
Detection of parity (P) and time-reversal (T) symmetry-odd electric dipole moments (EDMs) within currently achievable resolution would evidence physics beyond the Standard Model of…
Observation of the distribution of nuclear magnetization in a molecule
S. G. Wilkins, S. M. Udrescu, M. Athanasakis-Kaklamanakis +33
Rapid progress in the experimental control and interrogation of molecules, combined with developments in precise calculations of their structure, are enabling new opportunities in…
Pinning down electron correlations in RaF via spectroscopy of excited states and high-accuracy relativistic quantum chemistry
M. Athanasakis-Kaklamanakis, S. G. Wilkins, L. V. Skripnikov +53
We report the spectroscopy of the 14 lowest excited electronic states in the radioactive molecule radium monofluoride (RaF). The observed excitation energies are compared with full…
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…
Chiral molecules as sensitive probes for direct detection of -odd cosmic fields
Konstantin Gaul, Mikhail G. Kozlov, Timur A. Isaev +1
Particular advantages of chiral molecules for direct detection of the time-dependence of pseudoscalar and the timelike-component of pseudovector cosmic fields are highlighted. Such…
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…
BOOST -- A Satellite Mission to Test Lorentz Invariance Using High-Performance Optical Frequency References
Norman Gürlebeck, Lisa Wörner, Thilo Schuldt +15
BOOST (BOOst Symmetry Test) is a proposed satellite mission to search for violations of Lorentz invariance by comparing two optical frequency references. One is based on a long-ter…
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…