Seven-Loop Critical Exponents from Strong-Coupling phi^4-Theory in Three Dimensions

Details Seven-Loop Critical Exponents from Strong-Coupling phi^4-Theory in Three Dimensions Seven-Loop Critical Exponents from Strong-Coupling phi^4-Theory in Three Dimensions

1998-12-22

arxiv.org/abs/hep-th/9812197v2

Phys.Rev. D60 (1999) 085001

Physics

High Energy Physics

High Energy Physics - Theory

Author Information under http://www.physik.fu-berlin.de/~kleinert/institution.html . Latest update of paper also at http:/

Scientific paper

10.1103/PhysRevD.60.085001

Using strong-coupling quantum field theory we calculate highly accurate
critical exponents nu, eta from new seven-loop expansions in three dimensions.
Our theoretical value for the critical exponent alpha of the specific heat near
the lambda-point of superfluid helium is alpha =-0.01294+-0.00060, in excellent
agreement with the space shuttle experimental value alpha =-0.01285+-0.00038.

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