论文标题
量子扭转和hartle-hawking的“光束''
Quantum torsion and a Hartle-Hawking "beam''
论文作者
论文摘要
在爱因斯坦 - 卡丹框架中,无扭转的条件是在哈密顿处理中作为二等限制。标准策略是在量化之前解决这些约束,从经典理论中消除扭转。在这里,我们主张在量化之前将扭转留在其他约束中,首先导致波函数,而波函数可以称为“运动型”,但对于扭转,而不是其他约束。然后,可以将无扭转条件作为一个条件,作为一个构造的物理波包,满足通常的不确定性关系,因此可以在扭转中量子波动的空间。这种替代策略具有令人惊讶的效果,即阐明波函数解决明确真实理论的意义是``delta-oction-unctionable ranasunizizized''。这种具有零(或任何固定)扭转的溶液应解释为扭转空间中的平面波。因此,正确构建的波数据包在标准意义上是可正常的。鉴于它们是规范双重的,因此该语句同样适用于Chern-Simons状态(连接表示)和Hartle-Hawking Wave Wave函数(度量表示)。我们展示了当考虑扭转时,如何用有限的标准替换了Hartle-Hawking波函数,我们称之为hartle-hawking梁。相反,Chern-Simons状态变成了连接空间中具有高斯概率分布的数据包。我们用两个部分结束了本文,解释了如何将这些结果推广到Minisuperspace之外。
In the Einstein-Cartan framework the torsion-free conditions arise within the Hamiltonian treatment as second-class constraints. The standard strategy is to solve these constraints, eliminating the torsion from the classical theory, before quantization. Here we advocate leaving the torsion inside the other constraints before quantization, leading at first to wave functions that can be called ``kinematical'' with regards to the torsion, but not the other constraints. The torsion-free condition can then be imposed as a condition upon the physical wave packets one constructs, satisfying the usual uncertainty relations, and so with room for quantum fluctuations in the torsion. This alternative strategy has the surprising effect of clarifying the sense in which the wave functions solving an explicitly real theory are ``delta-function normalizable''. Such solutions with zero (or any fixed) torsion, should be interpreted as plane waves in torsion space. Properly constructed wave packets are therefore normalizable in the standard sense. Given that they are canonical duals, this statement applies equally well to the Chern-Simons state (connection representation) and the Hartle-Hawking wave function (metric representation). We show how, when torsion is taken into account, the Hartle-Hawking wave function is replaced by a Gauss-Airy function, with finite norm, which we call the Hartle-Hawking beam. The Chern-Simons state, instead, becomes a packet with a Gaussian probability distribution in connection space. We conclude the paper with two sections explaining how to generalize these results beyond minisuperspace.