Interactions between Rydberg excitons in Cu2O

Simulation of coherent interactions between Rydberg atoms

The results of a theoretical investigation of the coherent interaction between many Rydberg atoms are reported. The atoms are assumed to move very little during the time range we investigate. We describe the basic interaction between atoms and show that (contrary to previous theoretical studies) the interaction between the atoms can be coherent. The band structure for a perfect lattice of atoms...

Zeros of Rydberg–Rydberg Föster interactions

Rydberg states of atoms are of great current interest for quantum manipulation of mesoscopic samples of atoms. Long-range Rydberg–Rydberg interactions can inhibit multiple excitations of atoms under the appropriate conditions. These interactions are strongest when resonant collisional processes give rise to long-range C3/R interactions. We show in this paper that even under resonant conditions ...

Relations between Rydberg-valence interactions in the O 2 molecule

Pushing the Auger limit: Kinetics of excitons in traps in Cu2O

We have measured the Auger recombination rate for excitons in Cu2O trapped in harmonic potential wells created by inhomogeneous stress. The rate is higher than assumed in most previous experiments, but consistent with the rate reported recently by O’Hara et al. @Phys. Rev. B ~to be published!#. We find that even given this rate, the orthoexciton density immediately after creation in the well by...

Photon-photon interactions via Rydberg blockade.

We develop the theory of light propagation under the conditions of electromagnetically induced transparency in systems involving strongly interacting Rydberg states. Taking into account the quantum nature and the spatial propagation of light, we analyze interactions involving few-photon pulses. We show that this system can be used for the generation of nonclassical states of light including tra...