Quantum coherent physics and chemistry concern the creation and manipulation of an
excited-state manifold that contains the superposition and entanglement of multiple quantum …

Many fundamental processes in nature occur on ultrashort time scales within picoseconds to
attoseconds, and on intrinsic length scales from nanometers to picometers. The structure of …

Attosecond science is nowadays a well-established research field, and table-top attosecond
sources based on high-harmonic generation are routinely used to access electronic motion …

Electric-field-driven scanning tunneling microscopy (STM) that uses carrier envelope phase-
controlled pulses in the THz region (THz-STM) has been attracting considerable attention …

The generation and direct time-domain sampling of ultrashort and ultra-broadband laser
pulses are at the forefront of time-resolved spectroscopy and attosecond science. Although …

Coherent phonon spectroscopy can provide microscopic insight into ultrafast lattice
dynamics and its coupling to other degrees of freedom under nonequilibrium conditions …

Experimental mapping of transmission is essential for understanding and controlling charge
transport through molecular devices and materials. Here we developed a single-molecule …

Bringing optical microscopy to the shortest possible length and time scales has been a long-
sought goal, connecting nanoscopic elementary dynamics with the macroscopic …

We report the manipulation of ultrafast quantum coherence of a two-level single hydrogen
molecular system by employing static electric field from the sample bias in a femtosecond …

Photoionization as a half-scattering process is not instantaneous. Usually, time delays in
photoionization are on the order of tens of attoseconds. In going from a single atom to a …