光子孤子及其与辐射中微子对发射的关系
Photonic soliton and its relevance to radiative neutrino pair emission
摘要：
考虑$Λ-$型三能级原子与双模光场的耦合，导出了两个低能级间双光子发射的有效Maxwell-Bloch方程。我们发现轴对称的，拓扑稳定的孤子解的凝聚场。孤子形成对辐射中微子对发射的直接影响是提高其速率，大于通常的目标数依赖性的$\propto N^2$因子，以及增加背景光子发射信号的另一个优点。
英文摘要：
We consider atomic system of $Λ-$type 3-level coupled to 2 mode fields, and derive an effective Maxwell-Bloch equation designed for two photon emission between two lower levels. We find axially symmetric, topologically stable soliton solutions made of condensed fields. Immediate implication of soliton formation to radiative neutrino pair emission is to enhance its rate, larger than the usual $\propto N^2$ factor of target number dependence, along with another merit of increasing the signal to the background photon emission.
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