Large bandwidth excitation of Rydberg atoms in thermal vapor: Fast dynamics and strong interaction effects
نویسنده
چکیده
منابع مشابه
Strongly Correlated Growth of Rydberg Aggregates in a Vapor Cell.
The observation of strongly interacting many-body phenomena in atomic gases typically requires ultracold samples. Here we show that the strong interaction potentials between Rydberg atoms enable the observation of many-body effects in an atomic vapor, even at room temperature. We excite Rydberg atoms in cesium vapor and observe in real time an out-of-equilibrium excitation dynamics that is cons...
متن کاملPulsed Rydberg four-wave mixing with motion-induced dephasing in a thermal vapor.
We report on time-resolved pulsed four-wave mixing (FWM) signals in a thermal Rubidium vapor involving a Rydberg state. We observe FWM signals with dephasing times up to 7 ns, strongly dependent on the excitation bandwidth to the Rydberg state. The excitation to the Rydberg state is driven by a pulsed two-photon transition on ns timescales. Combined with a cw de-excitation laser, a strongly dir...
متن کاملCoherent Excitation of Rydberg Atoms in Thermal Vapor Microcells
The coherent control of mesoscopic ensembles of atoms and Rydberg atom blockade are the basis for proposed quantum devices such as integrable gates and single photon sources. So far, experimental progress has been limited to complex experimental setups that use ultracold atoms. Here, we show that coherence times of ∼ 100 ns are achievable with coherent Rydberg atom spectroscopy in μm sized ther...
متن کاملRydberg polaritons and Rydberg superatoms - Novel tools for quantum nonlinear optics
Mapping the strong interaction between Rydberg excitations in ultra-cold atomic ensembles onto single photons enables the realization of optical nonlinearities which can modify light on the level of individual photons. This novel approach forms the basis of a growing Rydberg quantum optics toolbox, which already contains photonic logic building-blocks such as single-photon sources, switches, tr...
متن کاملObservation of Rydberg blockade between two atoms
Blockade interactions whereby a single particle prevents the flow or excitation of other particles provide a mechanism for control of quantum states, including entanglement of two or more particles. Blockade has been observed for electrons1–3, photons4 and cold atoms5. Furthermore, dipolar interactions between highly excited atoms have been proposed as a mechanism for ‘Rydberg blockade’6,7, whi...
متن کامل