If you want to sum up the Sequoyah Hills neighborhood in a sentence or so, one could say it continues to go up in popularity and, like the real estate market in general, in price, too. At least that ...

光学原子钟作为人类最精密的测量仪器之一，其频率不稳定度和不准确度已达到10⁻¹⁸水平，在基础物理检验、相对论大地测量、暗物质探测等领域具有重要应用。然而，传统光学原子钟的测量精度受限于标准量子极限，即由N个独立原子的量子投影噪声所决定的相位测量不确定 ...