J P Duruisseau and R Kerner 1986 Class. Quantum Grav. 3 817 doi:10.1088/0264-9381/3/5/012
J P Duruisseau and R Kerner
Show affiliationsThe inflationary model proposed by Guth (1981), is based on non-classical behaviour of the energy-momentum tensor. The authors try to evaluate the corrections to the usual linear relation between the scalar curvature and the trace of the energy-momentum tensor, R approximately T, replacing the usual Einstein-Hilbert Lagrangian R by an unknown function f(R) and imposing the inflationary solution upon the scale factor a(t) of the Robertson-Walker metric. Solving for f(R) enables one to evaluate the corrections to the relation R approximately T, which may be developed in powers of R or T at will.
04.20.Fy Canonical formalism, Lagrangians, and variational principles
83C05 Einstein's equations (general structure, canonical formalism, Cauchy problems)
Issue 5 (September 1986)
J P Duruisseau and R Kerner 1986 Class. Quantum Grav. 3 817
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