Free-electron lasers and high-harmonic-generation table-top systems are new sources of
extreme-ultraviolet to hard X-ray photons, providing ultrashort pulses that are intense …

Over the last few decades, conical intersections (CoIns) have grown from theoretical
curiosities into common mechanistic features of photochemical reactions, whose function is …

Advances in attosecond spectroscopy have enabled tracing and controlling the electron
motion dynamics in matter, although they have yielded insufficient information about the …

Computational spectroscopy is becoming a mandatory tool for the interpretation of the
complex, and often congested, spectral maps delivered by modern non-linear multi-pulse …

X-ray diffraction is routinely used for structure determination of stationary molecular samples.
Modern X-ray photon sources, eg, from free-electron lasers, enable us to add temporal …

The direct probing of photochemical dynamics by detecting the electronic coherence
generated during passage through conical intersections is an intriguing challenge. The …

With the advent of attosecond light pulses at the beginning of this century, the possibility to
perform real‐time observations of electron motion in molecules has spurred impressive …

Elementary events that determine photochemical outcomes and molecular functionalities
happen on the femtosecond and subfemtosecond timescales. Among the most ubiquitous …

Conical intersections (CoIns) play an important role in ultrafast relaxation channels. Their
monitoring remains a formidable experimental challenge. We theoretically compare the …

Monitoring the motions of atoms and molecules in the course of chemical processes is a
central goal of femtochemistry. Optical spectroscopic signals are usually sensitive to …