Brane world creation from flat or almost flat space in dynamical tension string theories

Abstract There is great interest in the construction of brane worlds, where matter and gravity are forced to be effective only a lower dimensional surface, . How these could appear as consequence string theory crucial question this has been widely discussed. Here we will examine distinct scenario that appears dynamical tension theories positive between two surfaces separated by short distance at themselves tensions become infinite, therefore producing an confinement strings all space surfaces, which fact new type stringy world scenario. The basic formulation for obtaining consist assuming types characterized different constant integration related spontaneous generation. These multiplied embedding metric define conformally metrics both satisfy Einsteins equation. braneworlds very naturally when flat spaces special conformal transformation. determined they blow up close expanding surfaces. A puzzling aspect then: based on spaces, but then there also with large near boundaries braneworld,so can back reaction from infinite destroy background? Fortunatelly resolved using mechanism Universe creation almost (or empty) incorporates gas membrane, studied before 1+1 membranes 2+1 now generalized 1+(D-2) membrane moving 1+(D-1) space.