The first order expansion of a ground state energy of the ϕ4 model with cutoffs

DOI10.1063/5.0040022zbMath1462.81134arXiv2012.04907OpenAlexW3111166010MaRDI QIDQ4987887

Toshimitsu Takaesu

Publication date: 4 May 2021

Published in: Journal of Mathematical Physics (Search for Journal in Brave)

Full work available at URL: https://arxiv.org/abs/2012.04907

zbMATH Keywords

\(\varphi^4\) model

Mathematics Subject Classification ID

Model quantum field theories (81T10) General topics in linear spectral theory for PDEs (35P05) Perturbative methods of renormalization applied to problems in quantum field theory (81T15) Selfadjoint operator theory in quantum theory, including spectral analysis (81Q10)

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