Wormhole on DGP brane
Yoshimune TomikawaDepartment of Mathematics, Nagoya University, Nagoya 464-8602, JapanTetsuya ShiromizuDepartment of Mathematics, Nagoya University, Nagoya 464-8602, JapanKeisuke IzumiLeung Center for Cosmology and Particle Astrophysics, National Taiwan University, Taipei 10617, Taiwan
2014en
ABI
Аннотация
We analyze a spacetime structure on a new brane configuration constructed recently in the Dvali-Gabadadze-Porrati braneworld context. The brane, embedded on a five-dimensional bubble of nothing, has a wormhole structure. It is an exact solution without any matter fields, and thus the energy conditions for matter fields are trivially satisfied. We see that, under the traversability condition, the size of the bubble should be larger than ${10}^{10}\text{ }\text{ }\mathrm{cm}$ or so.
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