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Convergence properties of the effective theory for trapped bosons

✍ Scribed by Tölle, S; Hammer, H-W; Metsch, B Ch


Book ID
120593527
Publisher
Institute of Physics
Year
2013
Tongue
English
Weight
770 KB
Volume
40
Category
Article
ISSN
0954-3899

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Convergence studies in the theory of eff
✍ Philippe Durand; Ivana Paidarová 📂 Article 📅 1998 🏛 John Wiley and Sons 🌐 English ⚖ 713 KB

Wave-operator equations associated with the determination of effective Hamiltonians are generally solved by perturbation methods. However, it is well known that for most actual systems the standard Rayleigh-Schrodinger and Brillouin-Wigner series either converge slowly or diverge. One way how to dea