RUI: Studies in Classical and Quantum Gravity

WPCH 2 B P Z Courier 10cpi #| x x @ 8；X @信头- HP Laserjet II HPLASER2。PRS x @, t 0# lX @ 2 V jz Courier 10cpi 2 x x x, x @ 8；X @ BOND - HP Laserjet II HPLASERJ。伯杰教授将开展一个关于经典引力和量子引力的计算研究项目。尽管爱因斯坦的广义相对论是对观测到的引力现象的一种实验验证的描述，但它的经典方程一般是从规则的初始数据发展而来的奇点，与量子力学的原理不一致。在早期宇宙的背景下，对宇宙学的量子力学和最普遍的宇宙时空特性的研究可能会建议如何克服广义相对论的这些内在局限性。量子宇宙学是一个理论实验室，可以在其中测试量子引力的方法和早期宇宙中可能的量子引力效应。将标准量子蒙特卡罗模拟方法应用于量子宇宙学（并最终应用于量子引力），可以研究具有多个自由度的现实宇宙。＊＊＊

WPCH 2 B P Z Courier 10cpi #| x x @ 8 ; X @ LETTERHEAD - HP Laserjet II HPLASER2.PRS x @ , t 0# lX @ 2 V J Z Courier 10cpi 2 x x x , x @ 8 ; X @ BOND - HP Laserjet II HPLASERJ.PRS x @ , t 0# BmX @ 2 6 F ` F #| x 9305599 Berger Professor Berger will carry out a program of computational research on classical and quantum gravitation. Although Einstein's general theory of relativity is an experimentally verified description of observed gravitational phenomena, its classical equations generically develop singularities from regular initial data and are inconsistent with the principles of quantum mechanics. In the context of the early Universe, studies of the quantum mechanics of cosmologies and of the properties of the most general cosmological spacetimes might suggest how to overcome these intrinsic limitations of general relativity. Quantum cosmology serves as a theoretical laboratory within which to test both approaches to quantum gravity and possible quantum gravitational effects in the early Universe. The application of standard quantum Monte Carlo simulation methods to quantum cosmology (and ultimately to quantum gravity) allows realistic universes with many degrees of freedom to be studied. ***