TURBOMOLE is a collaborative, multi-national software development project aiming to
provide highly efficient and stable computational tools for quantum chemical simulations of …

Electronically excited states of molecules are at the heart of photochemistry, photophysics,
as well as photobiology and also play a role in material science. Their theoretical description …

Nonadiabatic mixed quantum–classical (NA-MQC) dynamics methods form a class of
computational theoretical approaches in quantum chemistry tailored to investigate the time …

The photophysics and photochemistry of DNA is of great importance due to the potential
damage of the genetic code by UV light. Quantum mechanical studies have played a key …

Nonadiabatic effects are ubiquitous in photophysics and photochemistry, and therefore,
many theoretical developments have been made to properly describe them. Conical …

We review state-of-the-art electronic structure methods based both on wave function theory
(WFT) and density functional theory (DFT). Strengths and limitations of both the wave …

The classic density-functional theory (DFT) formalism introduced by Hohenberg, Kohn, and
Sham in the mid-1960s is based on the idea that the complicated N-electron wave function …

In the thirty-two years since the birth of the foundational theorems, time-dependent density
functional theory has had a tremendous impact on calculations of electronic spectra and …

Time-dependent density-functional theory (TDDFT) has become a well-established part of
the modern theoretical chemist's toolbox for treating electronic excited states. Yet, though …

We present an exact decomposition of the complete wave function for a system of nuclei and
electrons evolving in a time-dependent external potential. We derive formally exact …