论文标题
量子宇宙学中的值
Qubit clock in quantum cosmology
论文作者
论文摘要
我们根据wotters方法研究了量子宇宙学的新兴时间情景。使用带有值时钟的量子宇宙学模型，它证明了量子钟和几何形状之间的纠缠如何导致时间参数的出现，该时间参数定义了宇宙永恒量子状态的演变。我们显示由量子钟时钟调节的宇宙波函数遵守标准的schrödinger方程和时钟状态的渔民信息，量化了宇宙与时钟之间的纠缠，这是负能量密度的。
We investigate the emergent time scenario in quantum cosmology based on the Page-Wotters approach. Using a quantum cosmological model with a qubit clock, it is demonstrated how the entanglement between the qubit clock and the geometry derives emergence of a time parameter which defines evolution of the timeless quantum state of the universe. We show the universe wave function conditioned by a qubit clock obeys the standard Schrödinger equation and the Fisher information for the clock state, which quantifies entanglement between the universe and the clock, contributes as a negative energy density.
