费曼图 meaning in Chinese
feynman diagram
Examples
- Gribov combined the nonrelativistic glauber multiple collisions theory with quantum field theory and fe ynman diagram technique so that relativistic kinematics could be included . based on glauber - gribov theory , b . z . kopeliovich et . al . developed green function method to calculate the shadowing effect in p - a drell - yan process
Gribov将描述高能非相对论的多次碰撞的glauber理论与量子场论和费曼图联系了起来，从而glauber - gribov理论可以描述相对论情况下的多次散射，基于这一理论， b . z . kopeliovich等提出用格林函数方法计算p - a碰撞的drell - yan过程中的遮蔽效应。 - By calculating the feynman diagram in rtf , we find that when taking into account both the thermal photon emission , absorption and the virtual photon exchange processes , the infrared divergences at zero and finite temperature can be cancelled at the same time . the full quantum calculation results for soft photon radiation coincide completely with the poisson distribution obtained in the semiclassical approximation ( the coupling of the classical current and quantized field )
通过实时温度场论下的费曼图计算，我们得到：将实光子的发射、吸收，虚光子的交换过程同时考虑时，零温场论中出现的和由温度效应引起的红外发散都能得到消除；并且完全量子场论下的软光子辐射几率与半经典近似下（经典的电流和量子化的电磁场之间的耦合）得到的泊松分布结果完全一致。