arXivDaily arXiv每日学术速递 周一至周五更新
arXiv周末暂无论文更新,休息一下吧,周末愉快~~
arXiv 2310.16617quant-ph
收藏

量子时间:一种用于量子信息的新型资源

Quantum Time: a novel resource for quantum information

M. Basil Altaie

AI总结:

本文综述了利用基于Page-Wootters方案的量子时钟测量的量子时间作为量子信息处理新型资源的可能性,探讨了相对论时间特征对量子信息分析及因果结构的影响。

摘要:

相对论理论中的时间具有与标准量子力学中所采用的不同地位,在标准量子力学中,时间被视为一个以外部绝对牛顿参考系为参照来测量的参数。这一地位极大地限制了它在系统动力学中的作用,并阻碍了任何将量子力学与广义相对论合并的表述,特别是在考虑量子引力时。为了克服这些局限性,几位作者试图构造一个与量子系统哈密顿量共轭的算符,以实现相对论时间的一些本质特征。这些表述使用了内部或内禀时间的概念,而非教科书中使用的普适坐标时间。此外,最近有研究指出,考虑具有相对论特征的时间能够增强量子信息处理中的分析技术,并影响其在量子信息的因果序和因果结构中的地位。时钟的作用、其准确度和稳定性已成为量子信息处理中的重要问题。本文对近期工作进行了实质性综述,这些工作反映了利用量子时间的可能性,该量子时间由根据Page-Wootters方案设计的量子时钟测量,可作为量子信息处理的资源。

英文摘要:

Time in relativity theory has a status different from that adopted by standard quantum mechanics, where time is considered as a parameter measured with reference to an external absolute Newtonian frame. This status strongly restricts its role in the dynamics of systems and hinders any formulation to merge quantum mechanics with general relativity, specifically when considering quantum gravity. To overcome those limitations, several authors tried to construct an operator which is conjugate to the Hamiltonian of quantum systems implementing some essential features of the relativistic time. These formulations use the concept of internal or intrinsic time instead of the universal coordinate time used in textbooks. Furthermore, recently it is remarked that the consideration of time with relativistic features could enhance the analysis techniques in quantum information processing and have an impact on its status in causal orders and causal structures of quantum information. The role of clocks, their accuracy and stability has become an important issue in quantum information processing. This article present a substantiative review of recent works which reflect the possibility of utilizing quantum time, measured by quantum clock devised according to Page-Wootters scheme, to stand as a resource for quantum information processing.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

↑