An embedding for general relativity and its implications for new physics
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- Mashhoon, B. & Wesson, P. Gen Relativ Gravit (2007) 39: 1403. doi:10.1007/s10714-007-0445-z
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We show that any solution of the 4D Einstein equations of general relativity in vacuum with a cosmological constant may be embedded in a solution of the 5D Ricci-flat equations with an effective 4D cosmological “constant” Λ that is a specific function of the extra coordinate. For unified theories of the forces in higher dimensions, this has major physical implications.