3 papers
hep-th1996
Rotation Operator vs Particle Creation in a Curved Space Time
Carlos E. Laciana
Taking into account a neutral massive scalar field minimally coupled to gravity, in a Robertson-Walker metric, it is shown that when the final state is connected with the initial o…
hep-th1996
Temperature Notion in a Curved Spacetime
Carlos E. Laciana
Scalar radiation, represented by a massless scalar field in a Robertson-Walker metric, is taken into account. By using a weak non minimum vacuum definition, the radiation temperatu…
hep-th1995
Particle Creation Amplification in Curved Space due to Thermal Effects
Carlos E. Laciana
A physical system composed by a scalar field minimally coupled to gravity and a thermal reservoir, as in thermo field dynamics, all of them in curved space time, is considered. Whe…