perturbative
- adjective
- /pərˈtɜːrbətɪv/
- Specialized
:
perturbativo
- In these cases, we should not necessarily trust the perturbative field theory calculations we have performed, but there may be generalizations of our arguments.
- perturbative calculation
- perturbative expansion
- perturbative QCD
Examples
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Such measurements can then be compared with predictions of perturbative QCD, a relatively tractable corner of the full theory.
Academic text (2003) -
Is the cross section in the perturbative limit or the unsaturated cross section?
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And then there's the soft function where if it's perturbative, we can calculate it.
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Because a is much smaller than unity, first-order perturbative approximations often suffice for comparing experimental data with the predictions of theoretical models.
Academic text (2005) -
QCD has been tested in higher energy regimes where quarks are asymptotically free and perturbative calculations are feasible.
Academic text (1993) -
More than 50 years ago, Richard Feynman showed how the terms that are summed in a perturbative calculation of a quantum probability amplitude can be represented by the simple diagrams that now bear his name.
Academic text (2004) -
In theoretical physics, we often rely on perturbative methods to simplify complex equations and find approximate solutions.
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When analyzing chaotic systems, scientists frequently use perturbative techniques to study how small changes affect behavior.
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For many problems in quantum field theory, perturbative expansions allow researchers to make accurate predictions with minimal computational effort.
Antonyms
Surface Forms
Morphology
Etymology
Perturbative comes from the same Latin root perturbare and is related to common words like disturb and turbulent. A helpful way to remember the technical sense is to think of giving a small 'push' or disturbance to a system to see how it changes. So, perturbative methods use small changes to estimate or simplify a hard problem.