PRODUCTION OF SPIN-1/2 PARTICLES IN INHOMOGENEOUS COSMOLOGIES

被引：11

作者：

CAMPOS, A

VERDAGUER, E

机构：

[1] Grup de Física Teòrica, Universitat Autònoma de Barcelona

来源：

PHYSICAL REVIEW D | 1992年 / 45卷 / 12期

关键词：

D O I：

10.1103/PhysRevD.45.4428

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

The production of spin-1/2 particles by small gravitational inhomogeneities is discussed by using a perturbative approach based on the evaluation of the scattering matrix. We compute the production of massive and massless particles by linear gravitational inhomogeneities in flat spacetime and the production of massless particles in an expanding universe described by the spatially flat Friedmann-Robertson-Walker models with small inhomogeneities. As in the case of scalar particles the total pair-creation probability is given in terms of geometric invariants of the spacetime.

引用

页码：4428 / 4438

页数：11

共 45 条

[1]

Abers E. S., 1973, Physics Reports. Physics Letters Section C, V9C, P1, DOI 10.1016/0370-1573(73)90027-6

[2]

ADAMS DJ, 1982, ASTROPHYS J, V253, P1

[3] INHOMOGENEOUS COSMOLOGY .2. LINEARLY POLARIZED GRAVITATIONAL-WAVES [J].