Iniquitous
发表于 2025-3-28 15:45:59
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HAVOC
发表于 2025-3-28 20:25:33
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听写
发表于 2025-3-29 01:18:50
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臭了生气
发表于 2025-3-29 06:24:11
Considerations Beyond First Order Perturbation Theoryimation to treat the different aspects of the projectile-target collisions only provided the conditions ./. ≪ 1 and ./. ≪ 1 are fulfilled. If at least one of them is violated, then one has to look for better approaches which go beyond the first order perturbation theory. It is the goal of this chapter to briefly discuss some of such approaches.