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Einstein's other gravity and the acceleration of the Universe

Title
Einstein's other gravity and the acceleration of the Universe
Authors
Linder E.V.
Ewha Authors
Eric V. Linder
Issue Date
2010
Journal Title
Physical Review D - Particles, Fields, Gravitation and Cosmology
ISSN
1550-7998JCR Link
Citation
vol. 81, no. 12
Indexed
SCI; SCIE; SCOPUS WOS scopus
Abstract
Spacetime curvature plays the primary role in general relativity but Einstein later considered a theory where torsion was the central quantity. Just as the Einstein-Hilbert action in the Ricci curvature scalar R can be generalized to f(R) gravity, we consider extensions of teleparallel, or torsion scalar T, gravity to f(T) theories. The field equations are naturally second order, avoiding pathologies, and can give rise to cosmic acceleration with unique features. © 2010 The American Physical Society.
DOI
10.1103/PhysRevD.81.127301
Appears in Collections:
자연과학대학 > 물리학전공 > Journal papers
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