论文标题

背景自由导致许多世界都有当地的美好和概率

Background freedom leads to many-worlds with local beables and probabilities

论文作者

Stoica, Ovidiu Cristinel

论文摘要

我认为量子重力的背景自由会自动导致量子状态分离为具有经典空间的状态。也就是说,对于具有不同空间几何形状的状态,即使其线性组合是不同的状态,干扰也不是完全定义的。在小尺度上仍然允许使用不同空间几何形状的状态干扰,但在宏观尺度上排除了。包括测量设​​备在内的宏观物质看起来很经典。空间几何形状的分布会自动提供出生规则。解离需要一种绝对的反折叠,这使得不必要的临时波浪崩溃了。这自然会导致许多世界解释的新版本,其中: 1)经典空间状态构成绝对优先基础, 2)在任何时候,由此产生的微分支就像古典世界一样,有空间中的物体, 3)宏观分支停止干扰,即使微分支可能会干扰(如应该) 4)太空几何形状在大爆炸处汇聚,有利于对未来的宏观分支, 5)通过吸收全局u(1)仪表中的相位,波功能变得真实 6)在本体论上,波浪功能由许多测量空间组成,每个人都通过拥有当地的素质(太空几何和经典领域)来算作世界 7)经典空间状态的密度会自动遵守出生的规则。

I argue that background freedom in quantum gravity automatically leads to a dissociation of the quantum state into states having a classical space. That is, interference is not completely well-defined for states with different space geometries, even if their linear combination is. Interference of states with different space geometry is still allowed at small scales, but precluded at macro-scales. Macrostates, including measuring devices, appear classical. The distribution of space geometries automatically gives the Born rule. The dissociation entails a kind of absolute decoherence, making the ad-hoc wavefunction collapse unnecessary. This naturally leads to a new version of the many-worlds interpretation, in which: 1) the classical space-states form an absolute preferred basis, 2) at any time, the resulting micro-branches are like classical worlds, with objects in space, 3) macro-branches stop interfering, even though micro-branches can interfere (as they should), 4) the space geometries converge at the Big-Bang, favoring macro-branching towards the future, 5) the wavefunctional becomes real by absorbing the phases in the global U(1) gauge, 6) ontologically, the wavefunctional consists of many gauged space-states, each of them counting as a world by having local beables (the space geometry and the classical fields), 7) the density of the classical space-states automatically obeys the Born rule.

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