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arXiv 0904.0469gr-qchep-th
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协变能量动量与广义相对论的一个不确定原理

Covariant energy-momentum and an uncertainty principle for general relativity

F. I. Cooperstock, M. J. Dupre

摘要:

我们引入一个自然定义的完全不变的时空能量表达式的广义相对论纳入重力的贡献。这种延拓与引力场的作用量积分无缝地联系在一起。在定态有界分布的情况下,任意系统的一般表达式简化为托尔曼积分的要求,导致支持能量局域化假设的能量-动量的物质局域化里奇积分。观察者的作用得到解决,并作为一个特殊的相对论性的情况下,观察者的领域与物质的共同运动被视为计算系统的内在整体能量。新的局部能量支持Bonnor的说法,即Szekeres坍缩尘埃的解决方案是节能的。在强引力的极端情况下,海森伯不确定原理可以用时空能量-动量来推广。

英文摘要:

We introduce a naturally-defined totally invariant spacetime energy expression for general relativity incorporating the contribution from gravity. The extension links seamlessly to the action integral for the gravitational field. The demand that the general expression for arbitrary systems reduces to the Tolman integral in the case of stationary bounded distributions, leads to the matter-localized Ricci integral for energy-momentum in support of the energy localization hypothesis. The role of the observer is addressed and as an extension of the special relativistic case, the field of observers comoving with the matter is seen to compute the intrinsic global energy of a system. The new localized energy supports the Bonnor claim that the Szekeres collapsing dust solutions are energy-conserving. It is suggested that in the extreme of strong gravity, the Heisenberg Uncertainty Principle be generalized in terms of spacetime energy-momentum.

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