Production of spin 3/2 particles from vacuum fluctuations

被引：91

作者：

Maroto, AL ^{[1
]}

Mazumdar, A

机构：

[1] Univ Sussex, Ctr Astron, Brighton BN1 9QJ, E Sussex, England

[2] Univ London Imperial Coll Sci Technol & Med, Blackett Lab, Astrophys Grp, London SW7 2BZ, England

来源：

PHYSICAL REVIEW LETTERS | 2000年 / 84卷 / 08期

关键词：

D O I：

10.1103/PhysRevLett.84.1655

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We study the production of spin 3/2 particles in homogeneous scalar and gravitational backgrounds using the mode-mixing Bogolyubov method. Considering only the helicity +/-3/2 states, we can reduce the problem to a standard Dirac fermion calculation and apply the standard techniques in a straight forward way. As an example we consider a specific supergravity inflationary model and calculate the spectrum of gravitinos created during preheating at the end of inflation.

引用

页码：1655 / 1658

页数：4

共 25 条

[1] Nonequilibrium dynamics of fermions in a spatially homogeneous scalar background field -: art. no. 125013 [J].