Thermal and Dynamical Particle Creation in a Curved Geometry

✍ Scribed by Carlos E. Laciana

• Book ID: 102561689
• Publisher: Elsevier Science
• Year: 1998
• Tongue: English
• Weight: 220 KB
• Volume: 264
• Category: Article
• ISSN: 0003-4916
• DOI: 10.1006/aphy.1997.5779

✦ Synopsis

A generalization of thermo field dynamics to a curved geometry is proposed. In particular a neutral scalar field minimally coupled to gravity is considered as matter content in a Robertson Walker metric. A nonlinear amplification in the particle creation is obtained, due to the altogether action of thermal and geometric effects. As a consequence the frequencies in the system look red-shifted with respect to the case where the thermal creation is not taken into account.