Strong-Coupling $φ^4$-Theory in $4- ε$ Dimensions and Critical Exponents

Details Strong-Coupling $φ^4$-Theory in $4- ε$ Dimensions and Critical Exponents Strong-Coupling $φ^4$-Theory in $4- ε$ Dimensions and Critical Exponents

1998-01-16

arxiv.org/abs/cond-mat/9801167v3

Phys.Lett. B434 (1998) 74-79

Physics

Condensed Matter

Replacement with corrected typos. Author Information under http://www.physik.fu-berlin.de/~kleinert/institution.html . Latest

Scientific paper

10.1016/S0370-2693(98)00750-3

With the help of variational perturbation theory we continue the
renormalization constants $\phi^4$-theories in $4- \epsilon$ dimensions to
strong bare couplings $g_0$ and find their power behavior in $g_0$, thereby
determining all critical exponents without renormalization group techniques.

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