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Showing 2002 · gr-qcShow all
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gr-qc2002★ 15 cited
Particle creation in a tunneling universe
J. Hong, A. Vilenkin, S. Winitzki
An expanding closed universe filled with radiation can either recollapse or tunnel to the regime of unbounded expansion, if the cosmological constant is nonzero. We re-examine the…
gr-qc2002★ 2 cited
Removal of Closed Timelike Curves in Kerr-Newman Spacetime
Hongsu Kim
A simple yet systematic new algorithm to investigate the global structure of Kerr-Newman spacetime is suggested. Namely, the global structure of θ=const. timelike submanifolds of K…