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Mhz Few-Body Frequency Shift Detected In A Cold 85rb Rydberg Gas, Jianing Han
Mhz Few-Body Frequency Shift Detected In A Cold 85rb Rydberg Gas, Jianing Han
Physics Faculty Scholarship
We have observed a density-dependent frequency shift of more than 4 MHz in a cold 85Rb Rydberg gas trapped in a magneto-optical trap. A one-dimensional linearly aligned four-body model is proposed to explain the experimental data, and the calculation matches the experimental data. The calculation also shows that if the energy detuning between the two coupled states, the nsnsns(n + 1)s and nsnsnpnp states in this case, is small, the lowest level of the nsnsnpnp manifold has the maximum mixing probability, causing a frequency shift instead of line broadening. The results reported may be used for few-body blockade, Rydberg single-atom …
The Density Broadening In A Sodium F=2 Condensate Detected By A Pulse Train, Jianing Han
The Density Broadening In A Sodium F=2 Condensate Detected By A Pulse Train, Jianing Han
Physics Faculty Scholarship
The dipole-blockaded sodiumclock transition has been detected by high resolution microwave spectroscopy, the multiple-pulse spectroscopy. This spectroscopic technique has been first used to detect the density broadening and shifting in a Sodium Bose Einstein Condensate (BEC) by probing the sodium clock-transition. Moreover, by narrowing the pulse-width of the pulses, some of the broadening mechanisms can be partially reduced. The results reported here are essential steps toward the ground-statequantum computing, few-body spectroscopy, spin squeezing and quantum metrology.