10 - Effective Field Theory
from Part III - Applications
Published online by Cambridge University Press: 18 September 2026
Summary
This first chapter in Part III, focusing on applications of spontaneous symmetry breaking, introduces effective field theory as a way of describing the very-low-energy physics of Nambu–Goldstone modes in symmetry-broken objects. The general coset-space construction for formulating an effective theory is discussed, as is the fate of Nambu–Goldstone modes and the emergence of Ward–Takahashi identities, which they give rise to.
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- Spontaneous Symmetry Breaking , pp. 171 - 202Publisher: Cambridge University PressPrint publication year: 2026
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