Alternative stable states in Australia’s Wet Tropics: a theoretical framework for the field data and a field-case for the theory

Optimized Expansion for the Effective Ac

Optimized Expansion for the Effective Action and Multi-particle States in the Scalar Quantum Field Theory

✍ A. Okopinska 📂 Article 📅 1993 🏛 Elsevier Science 🌐 English ⚖ 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