perturbation theory

collocation in English

meaningsofperturbationandtheory

These words are often used together. Click on the links below to explore the meanings. Or,see other collocations withperturbation.
perturbation
noun
uk
/ˌpɜː.təˈbeɪ.ʃən/us
/ˌpɝː.t̬ɚˈbeɪ.ʃən/
formal
worry
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theory
noun[C or U]
uk
/ˈθɪə.ri/us
/ˈθɪr.i/
a formal statement of the rules on which a subject of study is based or of ideas that are suggested to explain a fact or event or, more generally, an opinion ...
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(Definition ofperturbationandtheoryfrom theCambridge English Dictionary© Cambridge University Press)

Examplesofperturbation theory

These examples are from corpora and from sources on the web. Any opinions in the examples do not represent the opinion of the Cambridge Dictionary editors or of Cambridge University Press or its licensors.
The epistemological difference is clear: this timeperturbationtheorycreates something totally new.
From theCambridge English Corpus
Now we derive an equation allowing us to go beyond the first orderperturbationtheory.
From theCambridge English Corpus
We are thus in the realm of classicalperturbationtheory.
From theCambridge English Corpus
Calculation of free energy surface using the methods of thermodynamicperturbationtheory.
From theCambridge English Corpus
We use multiple-timescaleperturbationtheoryto predict this variation analytically.
From theCambridge English Corpus
Usingperturbationtheory, the critical half-axis ratio of the elliptical cross-section is computed for finite aspect ratio.
From theCambridge English Corpus
Our approach is based on spatial dynamics, bifurcation theory, and geometric singularperturbationtheory.
From theCambridge English Corpus
The analysis above can be carried out to an arbitrary order ofperturbationtheorywith the conclusions not changed.
From theCambridge English Corpus
In essenceperturbationtheorywill be performed about the limit in which v is spatially c0 : the uniform, though fluctuating in time.
From theCambridge English Corpus
Thus, aperturbationtheorycan be constructed that separates the fast gyro-motion from the drift component.
From theCambridge English Corpus
This requires the application of the method of multiple scales (reductiveperturbationtheory).
From theCambridge English Corpus
It is expected, therefore, that the new inverse-matrixperturbationtheoryalso will find a suitable parallel development in other economic analyses.
From theCambridge English Corpus
In the second case,perturbationtheorybrought about a fundamental conceptual change through the birth of quantum mechanics.
From theCambridge English Corpus
They are of wide use inperturbationtheoryin quantum mechanics, both non-relativistic and relativistic, and in classical mechanics.
From theCambridge English Corpus
Canonicalperturbationtheory: an approach based on joint approximations.
From theCambridge English Corpus
These examples are from corpora and from sources on the web. Any opinions in the examples do not represent the opinion of the Cambridge Dictionary editors or of Cambridge University Press or its licensors.
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