3 papers
hep-th2000
Some Comments on Wheeler De Witt Equation for Gravitational Collapse and the Problem of Time
Carlos Pinheiro, F. C. Khanna
We write the Hamiltonian for a gravitational spherically symmetric scalar field collapse with massive scalar field source, and we discuss the application of Wheeler De Witt equatio…
hep-th2000
Analysis of Maxwell Equations in a Gravitational Field
Sortelano Araujo Diniz, Carlos Pinheiro, F. C. Khanna
In a gravitational field, we analyze the Maxwell equations, the correponding electromagnetic wave and continuity equations. A particular solution for parellel electric and magnetic…
hep-th2000
Non Parallels Electric and Magnetic Fields in a F.R.W. Cosmology. Classical and Quantum Gravitational Implications
Carlos Pinheiro, J. A. Helayel-Neto, Gilmar S. Dias
At first, we discuss parallels electric and magnetic fields solutions in a gravitational background. Then, considering eletromagnetic and gravitational waves symmetries we show a p…