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• Braz. J. Phys. 35 (2b) • June 2005 • https://doi.org/10.1590/S0103-97332005000300012   copy

Quantum physical relevance of the Einstein tensor

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Taking quantum physics as well as large scale astronomical observations into account, a spacetime metric is introduced, such that the nonlinear part of the Einstein tensor contains effects of order $\hbar$.

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