296 citations
- Institute for Research in Fundamental SciencesIR52 papers
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4 papers · 2 filters
Fermat's principle in quantum gravitational optics
N. Ahmadi, S. Khoeini-Moghaddam, M. Nouri-Zonoz
Interactions incorporating the vacuum polarization effects in curved backgrounds modify the null cone structure in such a way that the photon trajectories would not be the space-ti…
Stabilization of test particles in Induced Matter Kaluza-Klein theory
S. Jalalzadeh, B. Vakili, F. Ahmadi +1
The stability conditions for the motion of classical test particles in an -dimensional Induced Matter Kaluza-Klein theory is studied. We show that stabilization requires a va…
Quantum gravitational optics in the field of a gravitomagnetic monopole
N. Ahmadi, S. Khoeini-Moghaddam, M. Nouri-Zonoz
Vacuum polarization in QED in a background gravitational field induces interactions which {\it effectively} modify the classical picture of light rays as the null geodesics of spac…
Quantum gravitational optics: Effective Raychaudhuri equation
N. Ahmadi, M. Nouri-Zonoz
Vacuum polarization in QED in a background gravitational field induces interactions which {\it effectively} modify the classical picture of light rays, as the null geodesics of spa…