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On the nature of “strong” Bogoliubov transformations for fermions

✍ Scribed by Gilles Labonté

Book ID
105264826
Publisher
Springer
Year
1974
Tongue
English
Weight
675 KB
Volume
36
Category
Article
ISSN
0010-3616

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Fermion Condensate and the Spectrum of M
Fermion Condensate and the Spectrum of Massive Schwinger Model in Bogoliubov Transformed Vacuum
✍ T. Tomachi; T. Fujita 📂 Article 📅 1993 🏛 Elsevier Science 🌐 English ⚖ 612 KB

We calculate the spectrum of the charge zero sector in two-dimensional quantum electrodynamics (massive Schwinger model). The calculations are first done in the rest frame with the perturbative vacuum within \(q \bar{q}\) and \(q q \bar{q} \bar{q}\) subspaces. This leads to the infrared instability