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Lee TH. Quintessence in low-energy effective theory. EPJ WEB OF CONFERENCES 2018. [DOI: 10.1051/epjconf/201816808004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Considering a theory of Brans-Dicke gravity with general couplings of a heavy field, we derive the low-energy effective theory action in the universe of temperature much lower than the heavy field mass. Gravitational equations and the Brans-Dicke scalar field equation including an effective potential of the scalar field are obtained, which is induced through virtual interactions of the heavy field in the late-time universe. We find a deSitter cosmological solution stemming from the inverse power law effective potential of the scalar field and discuss the possibility that the late time acceleration of our universe can be described by means of the solution.
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Min H, Lee C. Supermatrix proper-time representation of one-loop effective action and gauge invariance. Int J Clin Exp Med 1990; 41:507-513. [PMID: 10012357 DOI: 10.1103/physrevd.41.507] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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Lee C, Lee T, Min H. Generalized Schwinger-DeWitt expansions and effective field theories. PHYSICAL REVIEW. D, PARTICLES AND FIELDS 1989; 39:1701-1715. [PMID: 9959831 DOI: 10.1103/physrevd.39.1701] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/12/2023]
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