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Effective field theory for ultrasoft momenta in NRQCD and NRQED

✍ Scribed by A. Pineda; J. Soto


Book ID
114290967
Publisher
Elsevier Science
Year
1998
Tongue
English
Weight
384 KB
Volume
64
Category
Article
ISSN
0920-5632

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Optimized Expansion for the Effective Ac
✍ A. Okopinska πŸ“‚ Article πŸ“… 1993 πŸ› Elsevier Science 🌐 English βš– 768 KB

The optimized expansion for the effective action in quantum field theory is discussed to second order. As an example we use the scalar quantum field theory with \(\lambda \phi^{4}\) interaction in one-dimensional space-time, which is equivalent to quantum mechanics of the anharmonic ascillator. The