1.4k citations · 5.3k across the 108 of their papers we have counts for
5 papers · 1 filter
Exact solutions of embedding the four-dimensional perfect fluid in a five- or higher-dimensional Einstein spacetime and the cosmological interpretations
Jie Ren, Xin-He Meng, Liu Zhao
We investigate an exact solution that describes the embedding of the four-dimensional (4D) perfect fluid in a five-dimensional (5D) Einstein spacetime. The effective metric of the…
Observe the open universe in the sky?
Hong-Guang Zhang, Jie Ren, Xin-He Meng
We first review the related works on the observable consequence of landscape and the regulation of e-foldings during inflation. We focus on a branch of observable consequence of la…
Hamiltonian formalism in Friedmann cosmology and its quantization
Jie Ren, Xin-He Meng, Liu Zhao
We propose a Hamiltonian formalism for a generalized Friedmann-Roberson-Walker cosmology model in the presence of both a variable equation of state (EOS) parameter and a var…
Non-uniform Black Strings with Schwarzschild-(Anti-)de Sitter Foliation
Liu Zhao, Kai Niu, Bing-Shu Xia +2
We present some exact non-uniform black string solutions of 5-dimensional pure Einstein gravity as well as Einstein-Maxwell-dilaton theory at arbitrary dilaton coupling. The soluti…
Exact solutions of embedding the 4D Universe in a 5D Einstein manifold
Xin-He Meng, Jie Ren, Hong-Guang Zhang
One of the simplest way to extend 4D cosmological models is to add another spatial dimension to make them 5D. In particular, it has been shown that the simplest of such 5D models,…