Dark Energy in f(R) Gravity - Indiana University

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Conservation of matter Bianchi identity Homogeneous and isotropic universe with no pressure (comov<strong>in</strong>g frame) Time evolution of φ NJP, Class. Quantum Grav. 23, 2011 (2006)
Page 1 and 2: Dark Energy in f(R) Gravity Nikodem
Page 3 and 4: Dark energy Hypothetical form of en
Page 5 and 6: Variable cosmological constant Cosm
Page 7 and 8: f(R) gravity • Lagrangian - funct
Page 9 and 10: Variational principles I • f(R) g
Page 11 and 12: Variational Principles: Metric METR
Page 13 and 14: Jordan frame Assume action for matt
Page 15 and 16: Helmholtz Lagrangian The action in
Page 17 and 18: Einstein frame Conformal transforma
Page 19 and 20: Equations of field and motion Varia
Page 21 and 22: Dark energy-momentum tensor • Non
Page 23 and 24: Cosmological term Palatini f(R) gra
Page 25 and 26: R-1/R gravity 52 2 10 m The simples
Page 27 and 28: R-1/R gravity The simplest f(R) tha
Page 29 and 30: Compatibility with observations II
Page 31: Conclusions • f(R) gravity provid
Page 35: More cosmological parameters Decele

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