| 释义 |
infrared catastrophe infrared catastrophe[¦in·frə¦red kə′tȧs·trə·fē] (quantum mechanics) The logarithmic divergence in the cross section (which one would expect to be finite) for the emission of low-energy photons in bremsstrahlung and in the double Compton effect, according to quantum electrodynamics; the difficulty is resolved by taking radiative corrections to elastic scattering into account. Also known as infrared problem. |