TY - JOUR
T1 - Scattering of electromagnetic waves by a traversable wormhole
TT - پراکندگی امواج الکترومغناطیسی توسط یک کرمچاله گذرپذیر
JF - IJPR
JO - IJPR
VL - 5
IS - 3
UR - http://ijpr.iut.ac.ir/article-1-224-en.html
Y1 - 2005
SP - 135
EP - 144
KW - wormholes
KW - electromagnetic waves
KW - perturbation theory of scattering
KW - polarization
N2 - Replacing the wormhole geometry with an equivalent medium using the perturbation theory of scattering and the Born approximation, we have calculated the differential scattering cross section of electromagnetic waves by a traversable wormhole. It is shown that scattering at long wavelenghts can essentially distinguish wormhole from ordinary scattering object. Some of the zeros of the scattering cross section are determined which can be used for estimating the radius of the throat of wormholes. The known result that in this kind of scattering the linear polarization remains unchanged is verified here.
M3
ER -