Gibbons-Hawking-York boundary term
plural of khapol
luminescence when in the presence of oxygen
(physics) A very small microelectrode
(physics) In general relativity, a term that needs to be added to the Einstein-Hilbert action when the underlying spacetime manifold has a boundary.
境界を持つ時空に対して良定義な変分原理を得るためには、重力作用にギボンズ＝ホーキング＝ヨークの境界項を加える必要がある。
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