论文标题

De Sitter Space作为Glauber-Sudarshan州

de Sitter Space as a Glauber-Sudarshan State

论文作者

Brahma, Suddhasattwa, Dasgupta, Keshav, Tatar, Radu

论文摘要

Glauber-Sudarshan状态有时简单地称为Glauber状态,或者是连贯和挤压的状态,在任何量子场理论的配置空间中都是有趣的状态,在时空中非常类似于经典的轨迹。在本文中,我们将四维保安空间确定为超对称Minkowski真空的连贯状态。尽管这样的识别并不是什么新鲜事物,但是新的是说,这是可以在完整的字符串理论中实现的,但仅与暂时不同程度的自由和量子校正结合起来。此外,de Sitter空间上的波动由广义的重力(和Flux)添加的连贯状态,也称为Agarwal-Tara状态。 De Sitter空间作为一个州而不是真空的实现,它解决了与其熵,零点能量和跨普兰克审查制度相关的许多问题。

Glauber-Sudarshan states, sometimes simply referred to as Glauber states, or alternatively as coherent and squeezed-coherent states, are interesting states in the configuration spaces of any quantum field theories, that closely resemble classical trajectories in space-time. In this paper, we identify four-dimensional de Sitter space as a coherent state over a supersymmetric Minkowski vacuum. Although such an identification is not new, what is new however is the claim that this is realizable in full string theory, but only in conjunction with temporally varying degrees of freedom and quantum corrections resulting from them. Furthermore, fluctuations over the de Sitter space is governed by a generalized graviton (and flux)-added coherent state, also known as the Agarwal-Tara state. The realization of de Sitter space as a state, and not as a vacuum, resolves many issues associated with its entropy, zero-point energy and trans-Planckian censorship, amongst other things.

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