noun
infrared divergence
Technical term in quantum field theory referring to a divergence arising from low-energy (soft) photons or other massless particles. Used in academic physics contexts.
量子電磁力学では、赤外発散は軟光子の寄与によって生じる。
In quantum electrodynamics, infrared divergence arises from the contribution of soft photons.
Refers to ultraviolet divergence, which involves high-energy (short-distance) behavior, in contrast to the low-energy infrared divergence.
Compound of 赤外 (infrared) and 発散 (divergence, emission), directly corresponding to the English physics term 'infrared divergence'.