the DGP braneworld scenario from the point of view of observational cosmology. More specifically, we found that the WEC and the DEC are automatically satisfied in the possible range \[0.2874, *z*\] (see Fig. \[f6\]). Moreover, we can easily find that the second inequality $\rho+3p\geqslant0$ of the SEC is always violated at low redshifts. Furthermore, we also interpret clearly the physical implications of violations of different energy conditions for the DGP braneworld scenario.

With gradually increasing amounts of astrophysical data, we expect to test more cosmological scenarios, study the large-scale structure more thoroughly, and explore the evolving behaviors of local celestial bodies by adopting higher precision observations, particularly for the once purely theoretical concept of wormholes or even white holes physically.

Acknowledgments {#acknowledgments .unnumbered}
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We thank Professors Sergei. D. Odintsov and Bharat Ratra for beneficial feedback on astrophysics and cosmology. Deng Wang would like to thank Professor Jing-Ling Chen for helpful discussions about quantum information and quantum computation. This work is supported in part by the National Science Foundation of China.

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S. Perlmutter, M. S. Turner and 