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hep-th2017★ 7 cited
Bukhvostov-Lipatov model and quantum-classical duality
Vladimir V. Bazhanov, Sergei L. Lukyanov, Boris A. Runov
The Bukhvostov-Lipatov model is an exactly soluble model of two interacting Dirac fermions in 1+1 dimensions. The model describes weakly interacting instantons and anti-instantons…
hep-th2016★ 6 cited
Vacuum energy of the Bukhvostov-Lipatov model
Vladimir V. Bazhanov, Sergei L. Lukyanov, Boris A. Runov
Bukhvostov and Lipatov have shown that weakly interacting instantons and anti-instantons in the non-linear sigma model in two dimensions are described by an exactly soluble…