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Misner space

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Title: Misner space  
Author: World Heritage Encyclopedia
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Subject: Time travel, Rudolph Fentz, BTZ black hole, Quantum mechanics of time travel, Moberly–Jourdain incident
Collection: General Relativity
Publisher: World Heritage Encyclopedia

Misner space

Misner space is an abstract mathematical spacetime, discovered by Charles Misner of the University of Maryland. It is also known as the Lorentzian orbifold \mathbb{R}^{1,1}/boost.

An intuitive analogy may be drawn with a video game screen, where a screen element exits the frame through the right side, only to re-enter the frame right away through the left side.

Moving the spatial limits (e.g.: the walls of a room) enclosing an existing Misner space in the physical world, could theoretically lead to time travel.


  • M. Berkooz, B. Pioline, M. Rozali. Closed Strings in Misner Space: Cosmological Production of Winding Strings, Journal of Cosmology and Astroparticle Physics.

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