136 citations · 704 across the 20 of their papers we have counts for
4 papers · 1 filter
Time Machines and AdS Solitons with Negative Mass
Xing-Hui Feng, Wei-Jian Geng, H. Lu
We show that in D=2n+1 dimensions, when mass is negative and all angular momenta are non-vanishing, Kerr and Kerr-AdS metrics describe smooth time machines, with no curvature singu…
Godel Universe from String Theory
Shou-Long Li, Xing-Hui Feng, Hao Wei +1
Gödel universe is a direct product of a line and a three-dimensional spacetime we call G. In this paper, we show that the Gödel metrics can arise as exact solutions in Einstein…
Holographic Complexity and Two Identities of Action Growth
Hyat Huang, Xing-Hui Feng, H. Lu
The recently proposed complexity-action conjecture allows one to calculate how fast one can produce a quantum state from a reference state in terms of the on-shell action of the du…
Rotating Solutions in Critical Lovelock Gravities
M. Cvetic, Xing-Hui Feng, H. Lu +1
For appropriate choices of the coupling constants, the equations of motion of Lovelock gravities up to order n in the Riemann tensor can be factorized such that the theories admits…