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词汇 Frame field
分类 英语词汇 英语翻译词典
释义

Frame field

英语百科

Frame fields in general relativity

(重定向自Frame field)

In general relativity, a frame field (also called a tetrad or vierbein) is a set of four orthonormal vector fields, one timelike and three spacelike, defined on a Lorentzian manifold that is physically interpreted as a model of spacetime. The timelike unit vector field is often denoted by \vec{e}_0 and the three spacelike unit vector fields by \vec{e}_1, \vec{e}_2, \, \vec{e}_3. All tensorial quantities defined on the manifold can be expressed using the frame field and its dual coframe field.

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