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单词 Scattering length
释义

Scattering length

英语百科

Scattering length

The scattering length in quantum mechanics describes low-energy scattering. It is defined as the following low-energy limit,

where a is the scattering length, k is the wave number, and \delta(k) is the s-wave phase shift. The elastic cross section, \sigma_e, at low energies is determined solely by the scattering length,

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