collaborators

5 papers

physics.chem-ph2026

Rovibrational computations for He X including non-adiabatic, relativistic and QED corrections

Edit Mátyus, Ádám Margócsy

We report the potential energy curve, the diagonal Born-Oppenheimer, non-adiabatic mass, relativistic, and leading-order QED corrections for the ground electronic state of the heli…

physics.chem-ph2026

Rovibrational computations for the He a state including non-adiabatic, relativistic, and QED corrections

Ádám Margócsy, Balázs Rácsai, Péter Jeszenszki +1

A potential energy curve (PEC) accurate to a fraction of 1 ppm () is computed for the state of He endowed with relativistic and QED corrections. The…

physics.chem-ph2025

High-Precision Quantum Dynamics of He over the b -c Electronic Subspace by including Non-adiabatic, Relativistic and QED Corrections and Couplings

Balázs Rácsai, Péter Jeszenszki, Ádám Margócsy +1

Relativistic, quantum electrodynamics, as well as non-adiabatic corrections and couplings, are computed for the b and c electronic states of t…

physics.chem-ph2025

Spin-dependent terms of the Breit-Pauli Hamiltonian evaluated with an explicitly correlated Gaussian basis set for molecular computations

Péter Jeszenszki, Péter Hollósy, Ádám Margócsy +1

This work collects the spin-dependent leading-order relativistic and quantum-electrodynamical corrections for the electronic structure of atoms and molecules within the non-relativ…

physics.chem-ph2025

Rovibrational computation of H with permutationally invariant Pekeris coordinates

Gustavo Avila, Edit Mátyus

The Pekeris coordinates provide a permutationally invariant set of coordinates for H. They are defined as linear combinations of the three internuclear distances that automat…