34 citations · 226 across the 37 of their papers we have counts for
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gr-qc2018★ 34 cited
On the linear instability of the Ellis-Bronnikov-Morris-Thorne wormhole
Francesco Cremona, Francesca Pirotta, Livio Pizzocchero
We consider the wormhole of Ellis, Bronnikov, Morris and Thorne (EBMT), arising from Einstein's equations in presence of a phantom scalar field. In this paper we propose a simplifi…
gr-qc2018★ 8 cited
A time machine for free fall into the past
Davide Fermi, Livio Pizzocchero
Inspired by some recent works of Tippett-Tsang and Mallary-Khanna-Price, we present a new spacetime model containing closed timelike curves (CTCs). This model is obtained postulati…