论文标题
低能状态的奖励性能
Bonus Properties of States of Low Energy
论文作者
论文摘要
低能状态（SLE）是在任意弗里德曼 - 莱玛特的空间上定义的确切的哈达姆状态。它们是根据基准状态构建的，通过在具有时间窗口函数的平均值后最小化哈密顿的期望值。我们显示SLE仅在（状态独立的）换向器函数方面表达。他们还承认，对于庞大的理论和无数理论，在空间动量的力量方面进行了收敛的系列扩展。在无质量的情况下，发现所有规模因素的领先红外行为类似于minkowski。这为Friedmann-Lema-tre SpaceTime的红外差异提供了新的治疗方法，并加速了扩展。因此，无质量的SLE是通货膨胀前真空吸尘器的可行候选者，并且在可溶性模型中被证明需要定性正确的原始功率谱。
States of Low Energy (SLE) are exact Hadamard states defined on arbitrary Friedmann-Lemaître spacetimes. They are constructed from a fiducial state by minimizing the Hamiltonian's expectation value after averaging with a temporal window function. We show the SLE to be expressible solely in terms of the (state independent) commutator function. They also admit a convergent series expansion in powers of the spatial momentum, both for massive and for massless theories. In the massless case the leading infrared behavior is found to be Minkowski-like for all scale factors. This provides a new cure for the infrared divergences in Friedmann-Lemaître spacetimes with accelerated expansion. In consequence, massless SLE are viable candidates for pre-inflationary vacua and in a soluble model are shown to entail a qualitatively correct primordial power spectrum.
