Electromagnetically induced transparency with controlled van der Waals interaction
arXiv:1403.5724 · doi:10.1103/PhysRevA.90.045801
Abstract
We study the electromagnetically induced transparency (EIT) effect with two individually addressed four-level Rydberg atoms subjected to the interatomic van der Waals interaction. We derive an effectively atomic Raman transition model where two ladders of the usual Rydberg-EIT setting terminating at the same upper Rydberg level of long radiative lifetime are turned into a Rydberg-EIT lambda setup via two-photon transitions, leaving the middle levels of each ladder largely detuned from the coupling and probe laser beams. It can hence overcome the limits of applications for EIT with atoms of the ladder-type level configuration involving a strongly decaying intermediate state by inducing coherence between two ground states. By probing one of the atoms, we observe four doublets of absorption induced by the Autler-Townes (AT) splitting and the van der Waals interaction. In particular, we find that the location of the EIT center remains unchanged compared to the interatomic-interaction-free case, which demonstrated that the interference among the multiple transition channels is basically destructive. The EIT with controlled Rydberg-Rydberg interaction among few atoms provides a versatile tool for engineering the propagation dynamics of light.
5 pages, 4 figures
References in corpus (9)
- Cooperative atom-light interaction in a blockaded Rydberg ensemble
- Dipole blockade in a cold Rydberg atomic sample
- Deterministic entanglement of two neutral atoms via Rydberg blockade
- Observation and measurement of "giant" dispersive optical non-linearities in an ensemble of cold Rydberg atoms
- Long-range interacting many-body systems with alkaline-earth-metal atoms
- Dissipative Many-body Quantum Optics in Rydberg Media
- Steady-state crystallization of Rydberg excitations in an optically driven lattice gas
- Strongly interacting photons in hollow-core waveguides
- Driven-dissipative dynamics of a strongly interacting Rydberg gas