M
Matt Visser
Researcher at Victoria University of Wellington
Publications - 594
Citations - 28882
Matt Visser is an academic researcher from Victoria University of Wellington. The author has contributed to research in topics: Spacetime & General relativity. The author has an hindex of 82, co-authored 574 publications receiving 24896 citations. Previous affiliations of Matt Visser include Victoria University, Australia & University of Portsmouth.
Papers
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Signature-change events in emergent spacetimes with anisotropic scaling
TL;DR: In this paper, the authors investigate the behaviour of quantum fields coupled to a spacetime geometry exhibiting finite regions of Euclidean (Riemannian) signature, and demonstrate its direct physical relevance for an explicitly realizable condensed matter system whose linearized perturbations experience an effective emergent spacetime geometrical geometry with externally controllable signature.
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Zeta Functions and the Casimir Energy
TL;DR: In this article, a finite definition for the Casimir energy of an arbitrary ultrastatic spacetime with or without boundaries is given, which is intimately related to, but not identical to, the one-loop effective energy.
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Painlevé–Gullstrand coordinates versus Kerr spacetime geometry
Matt Visser,Stefano Liberati +1 more
TL;DR: In this article , the authors discuss the tension between the possible existence of Painleve-Gullstrand coordinate systems versus the explicit geometrical features of the Kerr spacetime.
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The Kiselev black hole is neither perfect fluid, nor is it quintessence
TL;DR: The Kiselev black hole model is an extremely popular toy model, with over 200 direct and indirect citations as of 2019 as mentioned in this paper, but despite repeated assertions to the contrary, this is not a perfect fluid spacetime.
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Warped space-time for phonons moving in a perfect nonrelativistic fluid
Uwe R. Fischer,Matt Visser +1 more
TL;DR: In this paper, a kinematical analogue of superluminal travel in the warped space-times curved by gravitation, in the form of super-phononic travel, was constructed.