GRAVITON CREATION IN AN INFLATIONARY UNIVERSE

被引：15

作者：

HENRIQUES, AB

机构：

[1] Departamento de Física, Instituto Superior Tecnico, 1096 Lisboa Codex, Av. Rovisco Pais

来源：

PHYSICAL REVIEW D | 1994年 / 49卷 / 04期

关键词：

D O I：

10.1103/PhysRevD.49.1771

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

Graviton creation in an expanding universe is studied. Following the work of Parker, we calculate explicit expressions for the Bogoliubov coefficients alpha and beta as functions of time, valid in the high-frequency limit and for an exponentially expanding phase of the universe. The power spectrum of the created gravitons is investigated.

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页码：1771 / 1776

页数：6

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