Entropy evolution in warm inflation from a 5D vacuum

被引:8
作者
Romero, J. [1 ,2 ]
Bellini, M. [1 ,2 ]
机构
[1] Univ Nacl Mar del Plata, Dept Fis, Fac Ciencias Exactas & Nat, RA-7600 Mar Del Plata, Argentina
[2] Consejo Nacl Invest Cient & Tecn, Mar Del Plata, Buenos Aires, Argentina
来源
NUOVO CIMENTO DELLA SOCIETA ITALIANA DI FISICA B-BASIC TOPICS IN PHYSICS | 2009年 / 124卷 / 08期
关键词
MATTER; EQUATIONS; UNIVERSE;
D O I
10.1393/ncb/i2010-10810-x
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
Using some ideas of Modern Kaluza-Klein theory, we examine the evolution of entropy on a 4D Friedmann-Robertson-Walker (FRW) brane from a 5D vacuum state, which is defined on a 5D background Riemann-flat metric. We found that entropy production is sufficiently important during inflation: S > 10(90), for all the initial values of temperature T-0 < T-GU.
引用
收藏
页码:861 / 868
页数:8
相关论文
共 21 条
[1]   Phantom Cosmology with a Decaying Cosmological Function Λ(t) Induced from Five-Dimensional (5D) Geometric Vacuum [J].
Aguilar, J. E. Madriz ;
Bellini, M. ;
Cruz, M. A. S. .
GRAVITATION & COSMOLOGY, 2008, 14 (03) :286-291
[2]   Decaying cosmological parameter in the early universe from NKK theory of gravity [J].
Bellini, M .
PHYSICS LETTERS B, 2006, 632 (5-6) :610-616
[3]   Warm inflation: Towards a realistic COBE data power spectrum for matter and metric thermal coupled fluctuations [J].
Bellini, M .
GENERAL RELATIVITY AND GRAVITATION, 2001, 33 (11) :2081-2091
[4]   Primordial fluctuations in the warm inflation scenario with a more realistic coarse-grained field [J].
Bellini, M .
NUCLEAR PHYSICS B, 1999, 563 (1-2) :245-258
[5]   Power spectrum of the primordial scalar field fluctuations in the warm inflation scenario [J].
Bellini, M .
PHYSICAL REVIEW D, 1998, 58 (10)
[6]   THERMALLY-INDUCED DENSITY PERTURBATIONS IN THE INFLATION ERA [J].
BERERA, A ;
FANG, LZ .
PHYSICAL REVIEW LETTERS, 1995, 74 (11) :1912-1915
[7]  
Campbell J., 1926, A Course on Differential Geometry
[8]   Extra symmetry in the field equations in 5D with spatial spherical symmetry [J].
de Leon, J. Ponce .
CLASSICAL AND QUANTUM GRAVITY, 2006, 23 (09) :3043-3052
[9]   Perturbations in warm inflation -: art. no. 063513 [J].
de Oliveira, HP ;
Jorás, SE .
PHYSICAL REVIEW D, 2001, 64 (06)
[10]   EXACT-SOLUTIONS AND THE EFFECTIVE EQUATION OF STATE IN KALUZA-KLEIN THEORY [J].
DELEON, JP ;
WESSON, PS .
JOURNAL OF MATHEMATICAL PHYSICS, 1993, 34 (09) :4080-4092