论文标题
巴罗全息黑能
Barrow holographic dark energy
论文作者
论文摘要
我们通过在宇宙学框架上应用通常的全息原理来制定巴罗全息暗能量，但使用巴罗熵而不是标准的贝肯斯坦·霍克（Bekenstein-Hawking）。前者是延伸的黑洞熵，由于量子杀伤的效应而产生，它通过使其具有复杂的分形形式而变形了黑洞表面。我们提取一个简单的微分方程，以实现黑暗能量密度参数的演变，该参数具有标准的全息暗能量作为限制子案例，我们表明该场景可以用物质和深色能量时代的顺序来描述宇宙热历史记录。此外，新的Barrow指数$δ$显着影响状态的暗能量方程，根据其价值，它可能导致其属于典型的制度，幻影制度，或在进化过程中体验幻影 - 偏见交叉。
We formulate Barrow holographic dark energy, by applying the usual holographic principle at a cosmological framework, but using the Barrow entropy instead of the standard Bekenstein-Hawking one. The former is an extended black-hole entropy that arises due to quantum-gravitational effects which deform the black-hole surface by giving it an intricate, fractal form. We extract a simple differential equation for the evolution of the dark energy density parameter, which possesses standard holographic dark energy as a limiting sub-case, and we show that the scenario can describe the universe thermal history, with the sequence of matter and dark energy eras. Additionally, the new Barrow exponent $Δ$ significantly affects the dark energy equation of state, and according to its value it can lead it to lie in the quintessence regime, in the phantom regime, or experience the phantom-divide crossing during the evolution.
