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Scalar-tensor theory of fourth-order gravity

Скалярно-тензорная теория гравитации

  • Published:
Il Nuovo Cimento B (1971-1996)

Summary

A scalar-tensor theory of fourth-order gravity is considered. Some cosmological consequences, due to the presence of the scalar field as well as of metric derivatives higher than second order, are analysed. In particular, upper bounds are obtained for the coupling constant α and for the scale factor of the Universe, respectively. The discussion is restricted to Robertson-Walker universes.

Riassunto

Si considera una teoria del tensore scalare di gravità di quart’ordine. Si analizzano alcune conseguenze cosmologiche, dovute alla presenza del campo scalare. In particolare, i legami superiori sono ottenuti per la costante di accoppiamento α e per il fattore scalare dell’Universo, rispettivamente. La discussione è ristretta agli universi di Robertson-Walker

Резюме

Рассматривается скалярно-тензорная теория гравитации. Анализируются некоторые космологические следствия, обусловленные наличием скалярного поля, а также метрических производных выше второго порядка. В частности, получаются верхние границы для постоянной связи α и для масштабного множитела Вселенной. Обсуждение ограничивается вселенными Робертсона-Уолкера.

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Author information

Authors and Affiliations

  1. Instituto de Física, Universidade Federal do Rio de Janeiro, Cidade Universitária Ilha do Fundão, CEP 21.944, Rio de Janeiro, R.J., Brasil

    A. J. Accioly & A. T. Gonçalves

Authors
  1. A. J. Accioly
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  2. A. T. Gonçalves
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Additional information

The authors gratefully acknowledge financial support from the Consello Nacional de Desenvolvimento Científico e Tecnológico (CNPq).

Traduzione a cura della Redazione.

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Accioly, A.J., Gonçalves, A.T. Scalar-tensor theory of fourth-order gravity. Nuovo Cim 96, 120–126 (1986). https://doi.org/10.1007/BF02721465

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  • DOI: https://doi.org/10.1007/BF02721465

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