Primordial density fluctuations in a dual supergravity cosmology

被引：8

作者：

Bento, MC ^{[1
]}

Bertolami, O ^{[1
]}

Nunes, NJ ^{[1
]}

机构：

[1] Univ Tecn Lisboa, Dept Fis, Inst Super Tecn, P-1096 Lisbon, Portugal

来源：

PHYSICS LETTERS B | 1998年 / 427卷 / 3-4期

关键词：

D O I：

10.1016/S0370-2693(98)00218-4

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We analyse the spectrum of energy density fluctuations of a dual supergravity model where the dilaton and the moduli are stabilized and sucessful inflation is achieved inside domain walls that separate different vacua of the theory. Constraints on the parameters of the superpotential are derived from the amplitude of the primordial energy density fluctuations as inferred from COBE and it is shown that the scale dependence of the tensor perturbations nearly vanishes. (C) 1998 Elsevier Science B.V. All rights reserved.

引用

页码：261 / 266

页数：6

共 51 条

[1] DUALITY IS AN EXACT SYMMETRY OF STRING PERTURBATION-THEORY [J].

ALVAREZ, E ;

OSORIO, MAR .

PHYSICAL REVIEW D, 1989, 40 (04) :1150-1152

[2] ON THE RMS ANISOTROPY AT 7-DEGREES AND 10-DEGREES OBSERVED IN THE COBE(1)-DMR 2-YEAR SKY MAPS [J].

BANDAY, AJ ;

GORSKI, KM ;

TENORIO, L ;

WRIGHT, EL ;

SMOOT, GF ;

LINEWEAVER, CH ;

KOGUT, A ;

HINSHAW, G ;

BENNETT, CL .

ASTROPHYSICAL JOURNAL, 1994, 436 (02) :L99-L102

[3] COSMOLOGICAL IMPLICATIONS OF DYNAMICAL SUPERSYMMETRY BREAKING [J].

BANKS, T ;

KAPLAN, DB ;

NELSON, AE .

PHYSICAL REVIEW D, 1994, 49 (02) :779-787

[4] COSMOLOGICAL MODULI PROBLEM, SUPERSYMMETRY BREAKING, AND STABILITY IN POSTINFLATIONARY COSMOLOGY [J].

BANKS, T ;

BERKOOZ, M ;

STEINHARDT, PJ .

PHYSICAL REVIEW D, 1995, 52 (02) :705-716

[5] MODULAR COSMOLOGY [J].

BANKS, T ;

BERKOOZ, M ;

SHENKER, SH ;

MOORE, G ;

STEINHARDT, PJ .

PHYSICAL REVIEW D, 1995, 52 (06) :3548-3562

[6] COSMIC TEMPERATURE-FLUCTUATIONS FROM 2 YEARS OF COBE DIFFERENTIAL MICROWAVE RADIOMETERS OBSERVATIONS [J].

BENNETT, CL ;

KOGUT, A ;

HINSHAW, G ;

BANDAY, AJ ;

WRIGHT, EL ;

GORSKI, KM ;

WILKINSON, DT ;

WEISS, R ;

SMOOT, GF ;

MEYER, SS ;

MATHER, JC ;

LUBIN, P ;

LOEWENSTEIN, K ;

LINEWEAVER, C ;

KEEGSTRA, P ;

KAITA, E ;

JACKSON, PD ;

CHENG, ES .

ASTROPHYSICAL JOURNAL, 1994, 436 (02) :423-442

[7] INFLATION FROM STRINGS .2. REHEATING AND BARYOGENESIS [J].

BENTO, MC ;

BERTOLAMI, O ;

SA, PM .

MODERN PHYSICS LETTERS A, 1992, 7 (11) :911-920

[8] Topological inflation in dual superstring models [J].

Bento, MC ;

Bertolami, O .

PHYSICS LETTERS B, 1996, 384 (1-4) :98-102

[9] Constraints on supergravity chaotic inflationary models [J].

Bento, MC ;

Bertolami, O .

PHYSICS LETTERS B, 1996, 365 (1-4) :59-63

[10] SCALE-FACTOR DUALITY - A QUANTUM COSMOLOGICAL APPROACH [J].

BENTO, MC ;

BERTOLAMI, O .

CLASSICAL AND QUANTUM GRAVITY, 1995, 12 (08) :1919-1925

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