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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…
gr-qc1998
GR without SR: A gravitational-domain description of first-order Doppler effects
Eric Baird
Equivalence principles are a major part of modern relativity theory. Gravitational shifts can already be calculated within the time domain as motion shifts, and we examine the cons…