680 citations · 2.3k across the 19 of their papers we have counts for
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Traversable wormholes from surgically modified Schwarzschild spacetimes
Matt Visser
In this paper I present a new class of traversable wormholes. This is done by surgically grafting two Schwarzschild spacetimes together in such a way that no event horizon is permi…
Traversable wormholes: Some simple examples
Matt Visser
Building on the work of Morris, Thorne, and Yurtsever, some particularly simple examples of traversable wormholes are exhibited. These examples are notable both because the analysi…
Cosmographic Hubble fits to the supernova data
Celine Cattoen, Matt Visser
The Hubble relation between distance and redshift is a purely cosmographic relation that depends only on the symmetries of a FLRW spacetime, but does not intrinsically make any dyn…
Bounding the greybody factors for Schwarzschild black holes
Petarpa Boonserm, Matt Visser
Greybody factors in black hole physics modify the naive Planckian spectrum that is predicted for Hawking radiation when working in the limit of geometrical optics. We consider the…
Emergent rainbow spacetimes: Two pedagogical examples
Matt Visser
There is a possibility that spacetime itself is ultimately an emergent phenomenon, a near-universal "low-energy long-distance approximation", similar to the way in which fluid mech…
Cosmodynamics: Energy conditions, Hubble bounds, density bounds, time and distance bounds
Celine Cattoen, Matt Visser
We refine and extend a programme initiated by one of the current authors [Science 276 (1997) 88; Phys. Rev. D56 (1997) 7578] advocating the use of the classical energy conditions o…