标题： 极小超空间作为量子开放系统 显示英文标题

标题： Minisuperspace as a Quantum Open System

摘要： 我们追溯了从Misner首次提出混沌宇宙学中的耗散过程思想和量子宇宙学的minisuperspace方法到当前研究的发展历程。 我们展示了：1）早期宇宙中的量子过程（如粒子创生）如何解决观测宇宙各向同性和均匀性的问题；2）将minisuperspace视为一个量子开放系统如何解决量子宇宙学中通常采用的近似方法的有效性问题；3）结合去相干性和关联性等统计过程如何有助于建立弯曲时空中的量子场论作为量子引力的半经典极限理论。 {\it 献给1992年6月Misner教授六十岁生日。}即将发表于1993年5月College Park召开的“{\it 广义相对论的方向}”研讨会论文集，第一卷，由B. L. Hu、M. P. Ryan 和 C. V. Vishveshwara编辑（剑桥大学出版社1993年出版）~~~~umdpp 93-60 显示英文摘要

摘要： We trace the development of ideas on dissipative processes in chaotic cosmology and on minisuperspace quantum cosmology from the time Misner proposed them to current research. We show 1) how the effect of quantum processes like particle creation in the early universe can address the issues of the isotropy and homogeneity of the observed universe, 2) how viewing minisuperspace as a quantum open system can address the issue of the validity of such approximations customarily adopted in quantum cosmology, and 3) how invoking statistical processes like decoherence and correlation when considered together can help to establish a theory of quantum fields in curved spacetime as the semiclassical limit of quantum gravity. {\it Dedicated to Professor Misner on the occasion of his sixtieth birthday, June 1992.} To appear in the Proceedings of a Symposium on {\it Directions in General Relativity}, College Park, May 1993, Volume 1, edited by B. L. Hu, M. P. Ryan and C. V. Vishveshwara (Cambridge University Press 1993)~~~~umdpp 93-60