摘要(英) |
Electromagnetically induce transparency(EIT) make the material become optically nonlinear and let the group velocity to be slower, even stop the light, which can be understood by using the coherence between light and atoms. Rydberg state atom can take as a dipole, a group of Rydberg atoms causes the dipole-dipole interaction to shift the energy level, offer one way to make the communication between atom-atom. Combine these two properties can be useful in the research of quantum information and the quantum gate.
The experience showed that the transmission became lower when the probe intensity went higher, also the output signal was observed to have the asymmetry on time, the peak of output signal came out earlier than the input one.
In our simulation result, we find there are two points need to consider
i. Transverse distribution of probe and couple field need to be consider, or we may miss out the density of Rydberg atoms.
ii. The accumulation of Rydberg atoms takes an important part to get the asymmetry figure of the output signal. |
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