液氮冷却诱导铑穆斯堡尔超辐射
Rhodium Mossbauer Supperadiance Induced by Liquid-Nitrogen Cooling
摘要：
在以前的报告中，我们已经证明了级联分支通道的多极铑穆斯堡尔γ E3跃迁通过时间和能量分辨光谱。此外，超辐射在Borrmann通道从倒置的核给伽马纠缠。在这封信中，我们报告进一步的四个观察超辐射及其相关的伽马纠缠在液氮温度下，即（i）加速衰变，（ii）淬火后的快速恢复，（iii）同时抑制伽马和K线，（iv）增强的多重电离。各向异性超辐射通道通过猝灭打开，并在猝灭后立即恢复。由冷却引起的K卫星和K超卫星的增强归因于三个以上纠缠γ的非弹性散射。
英文摘要：
In the previous report, we have demonstrated cascade branching channels of the multipolar E3 transition of rhodium Mossbauer gamma via the time- and energy-resolved spectroscopy. Moreover, superradiance in the Borrmann channel from inverted nuclei gives gamma entanglement. In this letter, we report further four observations of superradiance and its associated gamma entanglement at the liquid-nitrogen temperature, i.e. (i) speed-up decay, (ii) immediate recovery of the speed-up decay after quenching, (iii) simultaneous suppression of gamma and K lines, and (iv) enhanced multiple ionizations. Anisotropic superradiant channels open by quenching and recover back immediately after quenching. Enhanced K satellites and K hypersatellites induced by cooling are attributed to the inelastic scattering of more than three entangled gammas.
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