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单词
feynman propagator
释义
Feynman propagator
Feynman propagator
[
′fīn·mən ′präp·ə‚gād·ər
]
(quantum mechanics)
A factor (ρ +
m
)/ (ρ
2
-
m
2
+
i
ε) in a transition amplitude corresponding to a line that connects two vertices in a Feynman diagram, and that represents a virtual particle.
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更新时间:2025/7/15 1:25:03