微扰的

The theory is developed in a perturbative framework, where the effects of small perturbations are systematically calculated.
理论在微扰框架下发展，系统地计算小扰动的影响。
In quantum field theory, perturbative methods are used to calculate scattering amplitudes between particles.
在量子场论中，微扰方法被用来计算粒子之间的散射振幅。
The perturbative expansion is only valid when the coupling constant is small.
微扰展开只有在耦合常数较小时才有效。
Non-perturbative effects can sometimes be important in quantum chromodynamics (QCD).
非微扰效应有时在量子色动力学（QCD）中可能是重要的。
The perturbative approach often fails when dealing with strongly coupled systems.
当处理强耦合系统时，微扰方法往往失败。
The perturbative solution is an approximation that becomes less accurate as the system deviates further from equilibrium.
微扰解是一种近似解，当系统偏离平衡态越远，其准确性就越低。
Perturbative techniques are widely used in condensed matter physics to study materials under external fields.
微扰技术在凝聚态物理中被广泛使用，用于研究在外场作用下的材料。
In cosmology, perturbative methods are used to understand the evolution of structure in the universe.
在宇宙学中，微扰方法被用来理解宇宙结构的演化。
The perturbative series may not converge if the coupling constant is too large.
如果耦合常数太大，微扰级数可能不会收敛。
Perturbative methods can provide valuable insights into the behavior of complex systems, but they have limitations.
微扰方法可以为复杂系统的性质提供有价值的见解，但它们有局限性。