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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Analog model of a Friedmann-Robertson-Walker universe in Bose-Einstein condensates: Application of the classical field method
TL;DR: In this article, the authors investigated the analog of cosmological particle creation in a Friedmann-Robertson-Walker universe by numerically simulating a Bose-Einstein condensate with a time-dependent scattering length.
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Hawking Radiation without Black Hole Entropy
TL;DR: Hawking radiation is a purely kinematic effect that is generic to Lorentzian geometries containing event horizons; it is independent of dynamics as mentioned in this paper, and it can occur in physical situations in which the laws of black hole mechanics do not apply.
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Kodama time: Geometrically preferred foliations of spherically symmetric spacetimes
Gabriel Abreu,Matt Visser +1 more
TL;DR: In this paper, a geometrically preferred coordinate system for any time-dependent spherically symmetric spacetime was proposed, which is valid throughout the entire evolving spacetime.
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Acoustic geometry for general relativistic barotropic irrotational fluid flow
Matt Visser,Carmen Molina-París +1 more
TL;DR: In this paper, a pedagogical and simple derivation of the general relativistic acoustic spacetime in an arbitrary (d+1)-dimensional curved-space background is provided.
Posted Content
Acoustic propagation in fluids: an unexpected example of Lorentzian geometry
TL;DR: In this paper, it is shown how sound disturbances propagate in a non-homogeneous flowing fluid, where the fluid is barotropic and inviscid, and the flow is irrotational (though it may have an arbitrary time dependence).