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Results tagged with vacuum
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user 131306
A region of space devoid of any fluid molecules resulting in a zero pressure in ideal cases. In practice, even space has a small but finite number of molecules. In QFT, it signifies the ground state devoid of excitations/particles.
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Einstein field equations in empty space, question about non-zero curvature
After reading parts of Chapter 8 in Hobson, 'General Relativity: An introduction for Physicists,' I have a question regarding the observation on page 184 regarding the gravitational field equations in …
