12 citations · 50 across the 11 of their papers we have counts for
11 papers
Newman-Penrose-Debye formalism for fields of various spins in pp-wave backgrounds
Aleksadr Kulitskii, Elena Melkumova
Using Newman-Penrose formalism in tetrad and spinor notation, we perform separation of variables in the wave equations for massless fields of various spins s=1/2, 1, 3/2, 2 on the…
Piercing of domain walls: new mechanism of gravitational radiation
Dmitri Gal'tsov, Elena Melkumova, Pavel Spirin
Domain wall (DW) moving in media undergoes the friction force due to particle scattering. However certain particles are not scattered, but perforate the wall. As a result, the wall…
Branestrahlung: radiation in the particle-brane collision
Dmitry Gal'tsov, Elena Melkumova, Pavel Spirin
We calculate the radiation accompanying gravitational collision of the domain wall and the point particle in five-dimensional spacetime. This process, which can be regarded as bran…
Energy-momentum balance in particle - domain wall perforating collision
D. V. Gal'tsov, E. Yu. Melkumova, P. A. Spirin
We investigate the energy-momentum balance in the perforating collision of a point particle with an infinitely thin planar domain wall within the linearized gravity in arbitrary di…
Nambu-Goldstone explosion under brane perforation
D. V. Gal'tsov, E. Yu. Melkumova, S. Zamani-Mogaddam
We show that perforation of the three-brane by mass impinging upon it from the five-dimensional bulk excites Nambu-Goldstone spherical wave propagating outwards with the velocity o…
Cerenkov radiation from moving straight strings
D. V. Gal'tsov, E. Yu. Melkumova, K. Salehi
We study Cerenkov radiation from moving straight strings which glisse with respect to each other in such a way that the projected intersection point moves faster than light. To cal…