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- Max Planck SocietyDE799 papers
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8 papers · 2 filters
Microwave control of Rydberg atom interactions
Sevilay Sevinçli, Thomas Pohl
We investigate the interaction between Rydberg atoms, whose electronic states are dressed by multiple microwave fields. Numerical calculations are used for an exact description of…
Stark effect in the nonuniform field and its influence on the fine structure of Rydberg blockade
Yurii V. Dumin
Splitting the energy levels of a hydrogen-like atom by the electric field nonuniform at the atomic scale is studied. This situation is important for the multi-level treatment of th…
The envelope Hamiltonian for electron interaction with ultrashort pulses
Koudai Toyota, Ulf Saalmann, Jan M. Rost
For ultrashort VUV pulses with a pulse length comparable to the orbital time of the bound electrons they couple to we propose a simplified envelope Hamiltonian. It is based on the…
Collective excitation of Rydberg-atom ensembles beyond the enhancement
Martin Gärttner, Shannon Whitlock, David W. Schönleber +1
In an ensemble of laser-driven atoms involving strongly interacting Rydberg states, the excitation probability is usually strongly suppressed. In contrast, here we identify a regim…
Patterned Rydberg excitation and ionisation with a spatial light modulator
R. M. W. van Bijnen, C. Ravensbergen, D. J. Bakker +3
We demonstrate the ability to excite atoms at well-defined, programmable locations in a magneto-optical trap, either to the continuum (ionisation), or to a Rydberg state. To this e…
Study of attosecond delays using perturbation diagrams and exterior complex scaling
J. M. Dahlström, E. Lindroth
We describe in detail how attosecond delays in laser-assisted photoionization can be computed using perturbation theory based on two-photon matrix elements. Special emphasis is lai…