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gr-qc2021★ 189 cited
Black holes in Gravity
Fabio D'Ambrosio, Shaun D. B. Fell, Lavinia Heisenberg +1
We systematically study the field equations of gravity for spherically symmetric and stationary metric-affine spacetimes. Such spacetimes are described by a metric a…
gr-qc2021★ 18 cited
Positive Energy Warp Drive from Hidden Geometric Structures
Shaun D. B. Fell, Lavinia Heisenberg
Warp drives in Einstein's general theory of relativity provide a unique mechanism for manned interstellar travel. It is well-known that the classical superluminal soliton spacetime…