Massless scalar field in a de Sitter universe and its thermal flux

Details Massless scalar field in a de Sitter universe and its thermal flux Massless scalar field in a de Sitter universe and its thermal flux

Oct 1978

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1978jpha...11.1963l&link_type=abstract

Journal of Physics A - Mathematical and General, vol. 11, Oct. 1978, p. 1963-1968. Research supported by the National Council f

Physics

24

Astronomical Models, Field Theory (Physics), Heat Flux, Power Spectra, Thermal Emission, Universe, Boundary Value Problems, Energy Absorption, Scalars, Space-Time Functions, Wave Equations

Scientific paper

The time dependent wave equation for a conformally coupled massless scalar field in a de Sitter universe is examined. It is pointed out that the exact solutions of the radial equation valid over the 'whole range' can be found - unlike the corresponding situation in the Schwarzschild spacetime. The power spectrum of Hawking radiation is evaluated after calculating the absorption probability at the horizon. The solution is seen to be well behaved at the origin.

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