In this paper it is presented the model of a multiverse made up of universeswhich are created in entangled pairs that conserve the total momentumconjugated to the scale factor. For the background spacetime it is assumed aFRW metric with a scalar field with mass $m$ minimally coupled to gravity. Forthe fields that propagate in the entangled spacetimes it is considered theperturbations of the spacetime and the scalar field, whose quantum statesbecome entangled too. They turn out to be in a quasi thermal state and thecorresponding thermodynamical magnitudes are computed. Three observables areexpected to be caused by the creation of the universes in entangled pairs: amodification of the Friedmann equation because the entanglement of thespacetimes, a modification of the effective value of the potential of thescalar field by the backreaction of the perturbation modes, and a modificationof the spectrum of fluctuations because the thermal distribution induced by theentanglement of the partner universes. The later would be a distinctive featureof the creation of universes in entangled pairs.
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机译：在本文中，提出了一个由宇宙组成的多重宇宙的模型，这些宇宙以纠缠对的形式创建，这些对保留了与比例因子共轭的总动量。对于背景时空，假定具有标量场的FRW度量，其标量为质量$ m $与重力最小耦合。对于在纠缠时空中传播的场，它被认为是时空和标量场的扰动，它们的量子态也被纠缠。结果证明它们处于准热状态，并计算出相应的热力学强度。预计由纠缠对的宇宙的创建会导致三个可观察到的现象：由于时空的纠缠，对Friedmann方程的修正，通过摄动模式的后反应对标量场的有效值的修正，以及对的修正。波动的频谱是因为伙伴宇宙的纠缠引起的热分布。后者将是纠缠成对的宇宙创造的显着特征。
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