Dynamics of domain wall in a black hole bulk.

摘要: As we know there is an idea that domain wall can be regarded as a world volume in high dimension bulk. The moving of admitted the expansion or collapse volume. In bulk this paper, it has dilaton field, Maxwell field and gravity. Usually, matter viewed perfect fluid. show dynamics from magnanimous action with common factor function $f(\phi)$. Further-more, obtain general equations generally modified conjunction conditions. When choosing $e^{c\phi}$ inspired bosonic sector for effective IIA supergravity $f(\phi)$, although try special solution, still very complex to get accurate solution by solving equations. order conveniently more concrete physics naturally attempt another simple situation, namely $c=0$, return done K. C. Chan et al. These bulks are specially interesting possess non asymptotically flat (A)dS characteristics. By researching, find that, case, three situations motion bulk: accelerated all time, expanding constant speed collapsing into horizon. Whereas parameter, such initial density $\rho_1$, takes some big value, will produce bounce. addition, fine control situation first slows down minimum value then continue expand quickly.