Quantum field theory in curved spacetime and the dark matter problem

被引：0

作者：

Grib, A. A. ^{[1
]}

Pavlov, Yu. V. ^{[1
]}

机构：

[1] A Friedmann Lab Theoret Phys, 30-32 Griboedov Can, St Petersburg 191023, Russia

来源：

XXVI WORKSHOP ON GEOMETRICAL METHODS IN PHYSICS | 2007年 / 956卷

关键词：

particle creation; quantum field theory in curved spacetime; early universe; scalar field; dark matter; conformal coupling;

D O I：

暂无

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Quantum field theory in nonstationary curved Friedmann spacetime leads to the phenomenon of creation of massive particles. The hypothesis that in the end of inflation gravitation creates from vacuum superheavy particles decaying on quarks and leptons leading to the observed baryon charge is investigated. Taking the complex scalar field for these particles in analogy with K-0-meson theory one obtains two components - the long living and short living ones, so that the long living component after breaking the Grand Unification symmetry has a long life time and is observed today as dark matter. The hypothesis that ultra high energy cosmic rays occur as manifestation of superheavy dark matter is considered and some experimental possibilities of the proposed scheme are analyzed.

引用

页码：96 / +

页数：3

共 29 条

[1] Status of superheavy dark matter [J].

Aloisio, R. ;

Berezinsky, V. ;

Kachelriess, M. .

PHYSICAL REVIEW D, 2006, 74 (02)

[2] Cosmological branes and macroscopic extra dimensions [J].

Barvinsky, AO .

PHYSICS-USPEKHI, 2005, 48 (06) :545-575

[3] Signatures of topological defects [J].

Berezinsky, V ;

Blasi, P ;

Vilenkin, A .

PHYSICAL REVIEW D, 1998, 58 (10)

[4] Ultrahigh energy cosmic rays without Greisen-Zatsepin-Kuzmin cutoff [J].

Berezinsky, V ;

Kachelriess, M ;

Vilenkin, A .

PHYSICAL REVIEW LETTERS, 1997, 79 (22) :4302-4305

[5]

Birrell ND., 1982, Cambridge Monographs on Mathematical Physics, DOI 10.1017/CBO9780511622632

[6] Decaying superheavy dark matter and subgalactic structure of the Universe [J].

Chou, CH ;

Ng, KW .

PHYSICS LETTERS B, 2004, 594 (1-2) :1-7

[7] REMARKS ON POSITIVE FREQUENCY AND HAMILTONIANS IN EXPANDING UNIVERSES [J].

FULLING, SA .

GENERAL RELATIVITY AND GRAVITATION, 1979, 10 (10) :807-824

[8]

Gell-Mann M., 1979, Supergravity, P315

[9] END TO COSMIC-RAY SPECTRUM [J].

GREISEN, K .

PHYSICAL REVIEW LETTERS, 1966, 16 (17) :748-&

[10]

Grib A. A., 2006, Gravitation & Cosmology, V12, P159

← 1 2 3 →