Feynman's path integral approach is to sum over all possible spatiotemporal paths to
reproduce the quantum wave function and the corresponding time evolution, which has …

Tunneling is one of the most fundamental and ubiquitous processes in the quantum world.
The question of how long a particle takes to tunnel through a potential barrier has sparked a …

Attosecond-scale temporal characterization of photoionization is essential in understanding
how light and matter interact on the most fundamental level. However, characterizing the …

The interference of matter waves is one of the intriguing features of quantum mechanics that
has impressed researchers and laymen since it was first suggested almost a century ago …

Interferometry has been at the heart of wave optics since its early stages, resolving the
coherence of the light field and enabling the complete reconstruction of the optical …

Laser-induced electron tunneling underlies numerous emerging spectroscopic techniques
to probe attosecond electron dynamics in atoms and molecules. The improvement of those …

Angular streaking technique employs a close-to-circularly polarized laser pulse to build a
mapping between the instant of maximum ionization and the most probable emission angle …

Laser-induced tunneling ionization is one of the fundamental light-matter interaction
processes. An accurate description of the tunnel-ionized electron wave packet is central to …

Direct imaging of molecular dynamics is a long-standing goal in physics and chemistry. As
an emerging tool, high-order-harmonic spectroscopy (HHS) enables accessing molecular …

Strong-field ionization by counterrotating two-color laser fields produces quantum
interference between photoelectrons emitted on the leading and trailing edges of the laser …