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A Converse Hawking-Unruh Effect and dS~2/CFT Correspondence

机译:逆Hawking-Unruh效应和dS〜2 / CFT对应

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摘要

Given a local quantum field theory net A on the de Sitter spacetime dS~d , where geodesic observers are thermalized at Gibbons-Hawking temperature, we look for observers that feel to be in a ground state, i.e., particle evolutions with positive generator, providing a sort of converse to the Hawking-Unruh effect. Such positive energy evolutions always exist as noncommutative flows, but have only a partial geometric meaning, yet they map localized observables into localized observables. We characterize the local conformal nets on dS d . Only in this case our positive energy evolutions have a complete geometrical meaning. We show that each net has a unique maximal expected conformal subnet, where our evolutions are thus geometrical. In the two-dimensional case, we construct a holographic one-to-one correspondence between local nets A on dS~2 and local conformal non-isotonic families (pseudonets) B on S~1. The pseudonet B gives rise to two local conformal nets B_± on S~1, that correspond to the h_± horizon components of A, and to the chiral components of the maximal conformal subnet of A. In particular, A is holographically reconstructed by a single horizon component, namely the pseudonet is a net, iff the translations on h_± have positive energy and the translations on h_± are trivial. This is the case iff the one-parameter unitary group implementing rotations on dS~2 has positiveegative generator.
机译:给定在de Sitter时空dS〜d上的局部量子场理论网A,测地线观测器在吉本斯-霍金温度下被热化,我们寻找感觉处于基态的观测器,即具有正生成器的粒子演化提供了与Hawking-Unruh效应相反。这样的正能量演化始终以非交换流的形式存在,但仅具有部分几何意义,但它们将局部可观测量映射为局部可观测量。我们表征了dS d上的局部共形网络。只有在这种情况下,我们的正能量演化才具有完整的几何意义。我们证明每个网络都有一个唯一的最大预期保形子网,因此我们的演化是几何的。在二维情况下,我们在dS〜2上的局部网络A与S〜1上的局部共形非等张族(假牙形)B之间建立了全息一对一的对应关系。伪网络B在S〜1上产生两个局部共形网络B_±,它们对应于A的h_±水平分量以及A的最大共形子网的手性分量。特别地,A由a全息重构如果h_±上的平移具有正能量,而h_±上的平移是微不足道的,则单个地平线分量(即伪网是一个网)是伪网。如果在dS〜2上实现旋转的单参数unit群具有正/负发生器,就是这种情况。

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