Astronomy and Astrophysics – Astrophysics – General Relativity and Quantum Cosmology
Scientific paper
2004-05-11
Nuovo Cim.B119:1141-1148,2004
Astronomy and Astrophysics
Astrophysics
General Relativity and Quantum Cosmology
7 pages, extended and revised version of gr-qc/0309010
Scientific paper
10.1393/ncb/i2004-10127-5
f(R)-type gravity in the first order formalism is interpreted as Einstein
gravity with non-minimal coupling arising from the use of unphysical frame.
Identification of the corresponding second order higher-curvature gravity in
the physical frame is proposed by requiring that the action is the same.
Ezawa Yoshinori
Iwasaki H.
Ohkuwa Yoshiaki
Uegaki T.
Yamada Namiha
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