Abstract
The structures of space and time associated with various four-dimensional symmetries are constructed and examined. It is interesting that some of these four-dimensional symmetries are compatible with the existence of an aether in the Einstein sense. There are two classes of infinitely many four-dimensional symmetries that cannot be ruled out by previous experiments. We discuss some laser experiments that test these two classes of four-dimensional symmetries. An interesting connection between the nonclassical aether and gravity through the equality of inertial and gravitational mass is explored.
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Work supported in part by the U.S. Energy Research and Development Administration.
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Hsu, J.P. Laser experiments and various four-dimensional symmetries. Found Phys 7, 205–220 (1977). https://doi.org/10.1007/BF00709007
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DOI: https://doi.org/10.1007/BF00709007