ep - t h / 06 10 08 9 v 1 9 O ct 2 00 6 Bulk versus Brane Emissivities of Photon Fields : For the case of Higher - Dimensional Schwarzschild Phase
نویسنده
چکیده
The emission spectra for the spin-1 photon fields are computed when the spacetime is a (4 + n)-dimensional Schwarzschild phase. For the case of the bulk emission we compute the spectra for the vector mode and scalar mode separately. Although the emissivities for the scalar mode is larger than those for the vector mode when n is small, the emissivities for the vector mode photon become dominant rapidly with increasing n. For the case of the brane emission the emission spectra are numerically computed by making use of the complex potential method. Comparision of the bulk emissivities with brane emissivities indicates that the effect of the field spin makes the bulk emission to be rapidly dominant with increasing n. The importance for the spin-2 graviton emission problem is discussed. ∗Email:[email protected] †Email:[email protected] 1
منابع مشابه
Bulk versus Brane Emissivities of Photon Fields: For the case of Higher-Dimensional Schwarzschild Phase
The emission spectra for the spin-1 photon fields are computed when the spacetime is a (4+n)-dimensional Schwarzschild phase. For the case of the bulk emission we compute the spectra for the vector mode and scalar mode separately. Although the emissivities for the scalar mode is larger than those for the vector mode when n is small, the emissivities for the vector mode photon become dominant ra...
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