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physics.gen-ph1999
Warp drives, wavefronts and superluminality
Eric Baird
Coule's primary objection to the Alcubierre "warpdrive" is that the material producing the warp field needs to be superluminal. This difficulty is solved by placing the drive mater…
gr-qc1999
Hyper-fast travel without negative energy
Eric Baird
Olum (PRL 81 3567-3570, 1998) has defined "superluminality" as the ability of a signal path to carry information faster than any neighbouring signal path, and has suggested that th…