Warp Bubbles

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Recorded: 2021/03/25 Released: 2021/09/12

Randy tells Jim about solutions in general relativity that allow for isolated bubbles of spacetime that could, possibly, travel faster than light.
------------------------------------------- Notes:

1. Papers we both read for this program:

• Lobo, F.S.N. and M. Visser, "Fundamental Limitations on "Warp Drive" Spacetimes." Clas. Quant. Grav. 5871 21, (2004) [arXiv]
• Bobrick, A. and G. Maitre, "Introducing Physical Warp Drives." Clas. Quant. Grav. 38, 105009 (2021) [arXiv]

2. Other papers one or the other of us read:

• Lentz, E. " Breaking the Warp Barrier: Hyper-Fast Solitons in Einstein-Maxwell-Plasma Theory ." Clas. Quant. Grav. 38 075015 (2021) [arXiv]
• Carmona, A., J.C. Ruiz, and, M. Neubert "A Warped Scalar Portal to Fermionic Dark Matter." Eur. Phys. J. C 81, 58 (2021) [arXiv]

3. Related Episodes of Physics Frontiers:

• Physics Frontiers 47: Bumetric Gravity
• Physics Frontiers 39: Negative Effective Mass
• Physics Frontiers 31: The Parameterized Post-Newtonian Framework
• Physics Frontiers 25: Gravitational Field Propulsion
• Physics Frontiers 7: Virtual Gravitational Dipoles

Physics Frontiers 6: General Relativity for the Experimentalist

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