Conformal equivalence and Noether symmetries in cosmology

被引:34
作者
Capozziello, S [1 ]
de Ritis, R
Marino, AA
机构
[1] Univ Salerno, Dipartimento Sci Fisiche ER Caianiello, I-84081 Baronissi, Italy
[2] Univ Naples, Dipartimento Sci Fis, Naples, Italy
[3] Ist Nazl Fis Nucl, I-80125 Naples, Italy
[4] Osservatorio Astron Capodimonte, I-80131 Naples, Italy
关键词
D O I
10.1088/0264-9381/14/12/011
中图分类号
P1 [天文学];
学科分类号
0704 ;
摘要
In this paper, we discuss a possible method of finding cosmological exact solutions in the context of nonstandard coupled gravity theories. We consider whether Noether symmetries, present in the cosmological 'point-like' Lagrangian, are preserved under the conformal transformation which reduces a given nonstandard coupled model to the corresponding standard coupled one. We see that Noether symmetries are conformally preserved in a general way.
引用
收藏
页码:3259 / 3268
页数:10
相关论文
共 44 条
[1]  
Abraham R., 1978, Foundations of mechanics
[2]   NEW LIMITS ON THE VARIABILITY OF G FROM BIG-BANG NUCLEOSYNTHESIS [J].
ACCETTA, FS ;
KRAUSS, LM ;
ROMANELLI, P .
PHYSICS LETTERS B, 1990, 248 (1-2) :146-150
[3]   PERFECT FLUID SCALAR-TENSOR COSMOLOGIES [J].
BARROW, JD ;
MIMOSO, JP .
PHYSICAL REVIEW D, 1994, 50 (06) :3746-3754
[4]   EXACT SOLUTIONS OF EINSTEIN-CONFORMAL SCALAR EQUATIONS [J].
BEKENSTEIN, JD .
ANNALS OF PHYSICS, 1974, 82 (02) :535-547
[5]  
Bergmann PG, 1968, INT J THEOR PHYS, V1, P25, DOI DOI 10.1007/BF00668828
[6]   MACHS PRINCIPLE AND A RELATIVISTIC THEORY OF GRAVITATION [J].
BRANS, C ;
DICKE, RH .
PHYSICAL REVIEW, 1961, 124 (03) :925-&
[7]   NONMINIMAL COUPLING AND MATTER COSMOLOGIES [J].
CAPOZZIELLO, S ;
DERITIS, R .
PHYSICS LETTERS A, 1994, 195 (01) :48-52
[8]   Some aspects of the cosmological conformal equivalence between the 'Jordan frame' and the 'Einstein frame' [J].
Capozziello, S ;
de Ritis, R ;
Marino, AA .
CLASSICAL AND QUANTUM GRAVITY, 1997, 14 (12) :3243-3258
[9]   NOTHERS SYMMETRIES AND EXACT-SOLUTIONS IN FLAT NONMINIMALLY COUPLED COSMOLOGICAL MODELS [J].
CAPOZZIELLO, S ;
DERITIS, R .
CLASSICAL AND QUANTUM GRAVITY, 1994, 11 (01) :107-117
[10]   RELATION BETWEEN THE POTENTIAL AND NONMINIMAL COUPLING IN INFLATIONARY COSMOLOGY [J].
CAPOZZIELLO, S ;
DERITIS, R .
PHYSICS LETTERS A, 1993, 177 (01) :1-7