| Issue |
Europhys. Lett.
Volume 74, Number 6, June 2006
|
|
|---|---|---|
| Page(s) | 978 - 984 | |
| Section | The physics of elementary particles and fields | |
| DOI | https://doi.org/10.1209/epl/i2006-10063-3 | |
| Published online | 26 May 2006 | |
Gravitoelectromagnetically induced transitions in charged boson nebulae
Department of Solid State and Theoretical Physics, Faculty of Physics “Al. I. Cuza” University - Bd. Carol I no. 11, 700506 Iaşi, Romania
Corresponding author: marina@uaic.ro
Received:
1
March
2006
Accepted:
26
April
2006
We derive approximating analytical solutions to the system of Klein-Gordon-Maxwell-Einstein equations, describing a minimally coupled charged boson to a spherically symmetric spacetime. Within a first-order perturbative approach, we generalize some previous results and write down the effective potential and the current, for the non-vanishing radial-momentum case. These can be actually employed in computing quantum transitions, such as the ones related to gravitoelectric particle creation. It can be noticed that the non-vanishing radial wave number affects both the effective potential, by a gravity-based dipole contribution, and the current. These lead to serious consequences regarding the actual dispersion, the continuity equation and the growth, and respectively decay, of the quantum mode-excitations.
PACS: 11.27.+d – Extended classical solutions; cosmic strings, domain walls, texture / 04.40.Nr – Einstein-Maxwell spacetimes, spacetimes with fluids, radiation or classical fields / 04.20.Jb – Exact solutions
© EDP Sciences, 2006
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