单词 | geometrodynamics |
释义 | geometrodynamicsn. Physics. With singular agreement. An interpretation of general relativity in which physical phenomena are attributed to the geometrical properties of curved empty space evolving in time, quantum formulations of which are thought by some physicists to form a route to a self-consistent quantum theory of gravity.Chiefly associated with the American physicist J. A. Wheeler (1911–2008). ΚΠ 1957 C. W. Misner & J. A. Wheeler in Ann. Physics 2 526 There is nothing in the world except curved empty space. Matter, charge, electromagnetism, and other fields are only manifestations of the bending of space... To understand how far one can go in regarding classical physics as geometry is the object of this paper. Nothing will be said here about the fascinating issue of quantizing this classical pure ‘geometrodynamics’. 1957 C. W. Misner & J. A. Wheeler in Ann. Physics 2 600 One's attention is inevitably drawn..to the still deeper issue, what is the nature of quantum geometrodynamics? 1964 Discovery Oct. 16/2 A young but far-reaching new discipline known as geometrodynamics has made rapid strides in the last few years. 1986 Found. Physics 16 193 Geometrodynamics, that utmost version of relativistic dynamics in which space-time itself is envisaged as a dynamical history of a Riemannian geometry evolving along a foliation of spacelike hypersurfaces. 1995 I. Ciufolini & J. A. Wheeler Gravitation & Inertia ii. 13 If Einstein gave us a geometric account of motion and gravity, if according to his 1915 and still-standard geometrodynamics spacetime tells mass how to move and mass tells spacetime how to curve, then [etc.]. 2008 Guardian 16 Apr. 35/3 He [sc. Wheeler] developed a theory, geometrodynamics, attempting to contain physical phenomena in the geometry of curved space-time. This is a new entry (OED Third Edition, March 2012; most recently modified version published online March 2022). < n.1957 |
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