论文标题
来自Bose-Einstein凝结物的统一宇宙暗区
A Unified Cosmological Dark Sector from a Bose-Einstein Condensate
论文作者
论文摘要
我们研究了宇宙学解决方案的生存能力，描述了从光玻色子的Bose-Einstein冷凝物（BEC）中描述宇宙阴暗面的统一图片。 BEC的能量密度以及其量子电位确实可以解释如此统一，从某种意义上说，（类似尘埃的）冷暗物质和深色能量成分从同一来源出现。特别地，当量子校正的raychaudhuri-friedmann方程中，当“宏观” BEC波功能被视为使相应的概率密度被解释为尘土流体的能量密度时，大部分暗能量可以归因于量子电位。然而，出现纯粹的量子机械反应效应，即使是可见的重子，对有效的暗能量和暗物质含量，这至关重要地决定了BEC的质量。我们从物理考虑上确定了这种后反应的限制，因此可以使用最新的观察数据来估算相同的限制。
We examine the viability of cosmological solution(s) describing a unified picture of the dark side of the universe from a Bose-Einstein condensate (BEC) of light bosons. The energy density of the BEC, together with its quantum potential, can indeed account for such a unification, in the sense that the (dust-like) cold dark matter and the dark energy components emerge from the same source. In particular, the bulk of the dark energy can be attributed to the quantum potential, in the quantum corrected Raychaudhuri-Friedmann equation, when the `macroscopic' BEC wave-function is taken to be such that the corresponding probability density is construed as the energy density of the dusty fluid. However, there arises a purely quantum mechanical back-reaction effect, of even the visible baryons, on the effective dark energy and dark matter contents, which crucially determines the mass of the BEC. We determine the constraint on such a back-reaction, and hence on the BEC mass, from physical considerations, as well as estimate the same using recent observational data.
