What would we learn by detecting a gravitational wave signal in the cosmic microwave background anisotropy?

被引:632
作者
Lyth, DH
机构
[1] School of Physics and Chemistry, Lancaster University, Lancaster
关键词
D O I
10.1103/PhysRevLett.78.1861
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
Inflation generates gravitational waves, which may be observable in the low multipoles of the cosmic microwave background anisotropy but only if the inflaton field variation is at least of order the Planck scale. Such a large variation would imply that the model of inflation cannot be part of an ordinary extension of the standard model, and combined with the detection of the waves it would also suggest that the inflaton field cannot be one of the superstring moduli. Another implication of observable gravitational waves would be a potential V-1/4 = 2 to 4 x 10(16) GeV, which is orders of magnitude bigger than the prediction of most models.
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页码:1861 / 1863
页数:3
相关论文
共 45 条
[1]   NATURAL INFLATION - PARTICLE PHYSICS MODELS, POWER-LAW SPECTRA FOR LARGE-SCALE STRUCTURE, AND CONSTRAINTS FROM THE COSMIC BACKGROUND EXPLORER [J].
ADAMS, FC ;
BOND, JR ;
FREESE, K ;
FRIEMAN, JA ;
OLINTO, AV .
PHYSICAL REVIEW D, 1993, 47 (02) :426-455
[2]   COSMOLOGY FOR GRAND UNIFIED THEORIES WITH RADIATIVELY INDUCED SYMMETRY-BREAKING [J].
ALBRECHT, A ;
STEINHARDT, PJ .
PHYSICAL REVIEW LETTERS, 1982, 48 (17) :1220-1223
[3]   MODULAR COSMOLOGY [J].
BANKS, T ;
BERKOOZ, M ;
SHENKER, SH ;
MOORE, G ;
STEINHARDT, PJ .
PHYSICAL REVIEW D, 1995, 52 (06) :3548-3562
[4]   SPONTANEOUS CREATION OF ALMOST SCALE-FREE DENSITY PERTURBATIONS IN AN INFLATIONARY UNIVERSE [J].
BARDEEN, JM ;
STEINHARDT, PJ ;
TURNER, MS .
PHYSICAL REVIEW D, 1983, 28 (04) :679-693
[5]  
BARRIERO T, HEPPH9602263
[6]   CANDIDATES FOR THE INFLATION FIELD IN SUPERSTRING MODELS [J].
BINETRUY, P ;
GAILLARD, MK .
PHYSICAL REVIEW D, 1986, 34 (10) :3069-3083
[7]  
BINETRUY P, 1996, HEPPH9606342
[8]   THE COBE NORMALIZATION FOR STANDARD COLD DARK-MATTER [J].
BUNN, EF ;
SCOTT, D ;
WHITE, M .
ASTROPHYSICAL JOURNAL, 1995, 441 (01) :L9-L12
[9]   FALSE VACUUM INFLATION WITH EINSTEIN GRAVITY [J].
COPELAND, EJ ;
LIDDLE, AR ;
LYTH, DH ;
STEWART, ED ;
WANDS, D .
PHYSICAL REVIEW D, 1994, 49 (12) :6410-6433
[10]   Inflation in S-dual superstring models [J].
DelaMacorra, A ;
Lola, S .
PHYSICS LETTERS B, 1996, 373 (04) :299-305