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6 papers · 2 filters
Schrödinger's cat for de Sitter spacetime
Joshua Foo, Robert B. Mann, Magdalena Zych
Quantum gravity is expected to contain descriptions of semiclassical spacetime geometries in quantum superpositions. To date, no framework for modelling such superpositions has bee…
Analog Particle Production Model for General Classes of Taub-NUT Black Holes
Joshua Foo, Michael R. R. Good, Robert B. Mann
We derive a correspondence between the Hawking radiation spectra emitted from general classes of Taub-NUT black holes with that induced by the relativistic motion of an accelerated…
Particle scattering in a sonic analogue of special relativity
Scott L. Todd, Giacomo Pantaleoni, Valentina Baccetti +1
We investigate a simple toy model of particle scattering in the flat spacetime limit of an analogue-gravity model. The analogue-gravity medium is treated as a scalar field of phono…
Spinning up a Time Machine
T. C. Ralph, Chris Chang
We present a global metric describing closed timelike curves embedded in Minkowski spacetime. Physically, the metric represents an Alcubierre warp drive on a rotating platform. The…
Accelerating boundary analog of a Kerr black hole
Michael R. R. Good, Joshua Foo, Eric V. Linder
An accelerated boundary correspondence (i.e. a flat spacetime accelerating mirror trajectory) is derived for the Kerr spacetime, with a general formula that ranges from the Schwarz…
Hawking radiation particle spectrum of a Kerr-Newman black hole
Joshua Foo, Michael R. R. Good
Charged, rotating Kerr-Newman black holes represent the most general class of asymptotically flat black hole solutions to the Einstein-Maxwell equations of general relativity. Here…