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- W4297675737 abstract "A dispersionless shock wave in a fluid without friction develops a sonic spacetime singularity which is naked (not hidden by a horizon). We construct a fluid-dynamical analogue of the cosmic censorship hypothesis of Penrose, wherein this naked nondispersive shock-wave singularity is censored (prohibited) due to the microscopic structure of the underlying ${rm a}!{rm e}$ther and the resulting effective trans-Planckian dispersion. We find that including quantum pressure in Bose-Einstein condensates provides such a censor: Approaching the instant of shock $t_{rm shock}$, rapid spatial oscillations of density and velocity develop, which begin to emerge already slightly before $t_{rm shock}$. These oscillations render the spacetime structure completely regular, and therefore lead to a removal (censoring) of the spacetime singularity." @default.
- W4297675737 created "2022-09-30" @default.
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- W4297675737 date "2022-09-06" @default.
- W4297675737 modified "2023-09-26" @default.
- W4297675737 title "Cosmic censor of shock-wave singularities" @default.
- W4297675737 doi "https://doi.org/10.48550/arxiv.2209.02763" @default.
- W4297675737 hasPublicationYear "2022" @default.
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