Quantum information processing based on Rydberg atoms emerged as a promising
direction two decades ago. Recent experimental and theoretical progresses have shined …

Due to the subtle interplay of site-to-site electronic couplings, exciton delocalization,
nonadiabatic effects, and vibronic couplings, quantum dynamical studies are needed to …

We study coherent excitation hop** in a spin chain realized using highly excited
individually addressable Rydberg atoms. The dynamics are fully described in terms of an XY …

Atoms confined in optical tweezer arrays constitute a platform for the implementation of
quantum computers and simulators. State-dependent operations are realized by exploiting …

We measure the angular dependence of the resonant dipole-dipole interaction between two
individual Rydberg atoms with controlled relative positions. By applying a combination of …

Transient localization has been proposed as a transport mechanism in organic materials, for
both charge carriers and excitons. Here, we characterize a quantum coherent transient …

We investigate the transport of excitations through a chain of atoms with nonlocal dissipation
introduced through coupling to additional short-lived states. The system is described by an …

We report on the selective addressing of an individual atom in a pair of single-atom
microtraps separated by 3 μ m. Using a tunable light shift, we render the selected atom off …

To investigate the effect of quantum coherence on electronic energy transfer, which is the
subject of current interest in photosynthesis, we solve the problem of transport for the …

We show that an array of ultracold Rydberg atoms embedded in a laser driven background
gas can serve as an aggregate for simulating exciton dynamics and energy transport with a …