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Natural brane-confinement from massive Z 2-spontaneously broken Kaluza-Klein excitations in the bulk

100%
Dariescu M., Dariescu C., Romero C.
Open Physics
|
2009
|
vol. 7
|
issue 4
690-695
EN
For a real scalar field minimally coupled to bulk gravity, in five dimensions, we analytically solve the Gordon equation, near one of the degenerated vacua of an effective potential with a spontaneously broken Z 2-symmetry. Dealing with the back-reaction from the excited massive modes on the whole scale function, we are pointing out that the lighter excitations of the scalar in the bulk turn more and more the warp function into the one of a partition on the confined brane.
2
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Inverse scattering method and soliton double solution family for string effective action

100%
Gao Y.-J.
Open Physics
|
2009
|
vol. 7
|
issue 4
821-828
EN
A so-called modified Hauser-Ernst-type extended double-complex linear system is established and used to develop a new inverse scattering method for solving the equations of motion of the string effective action describing the coupled gravity, dilaton and Kalb-Ramond fields. The reduction procedures in this inverse scattering method are found to be fairly simple, which makes the application of the inverse scattering method fine and effective. As an application, a concrete family of soliton double solutions for the considered theory is obtained.
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