2015/03/06 by Yoshimune Tomikawa, Keisuke Izumi, Tetsuya Shiromizu · 1 citation
Physics and Astronomy · #gr-qc
paper · pdf · doi:10.1103/physrevd.91.104008
7 pages
arxiv created 2015/03/06 · arxiv updated 2015/06/11
We present a new definition of the wormhole throat including the flare-out condition and the traversability for general dynamical spacetimes in terms of null geodesic congruences. We will examine our definition for some examples and see advantages compared to the others.