.png){kind=icon}
返回
Quantum operations with indefinite time direction
.png){kind=icon}
OA
AI
DOI：10.1038/s42005-022-00967-3.png)
.png){kind=icon}
原文求助.png){kind=icon}
分享.png){kind=icon}
收藏
摘要
En 中文
The fundamental dynamics of quantum particles is neutral with respect to the arrow of time. And yet, our experiments are not: we observe quantum systems evolving from the past to the future, but not the other way round. A fundamental question is whether it is possible, at least in principle, to conceive a broader set of operations that probe quantum processes in the backward direction, from the future to the past, or more generally, in a combination of the forward and backward directions. Here we introduce a mathematical framework for operations that are not constrained to a definite time direction. More generally, we introduce a set of multipartite operations that include indefinite time direction as well as indefinite causal order, providing a framework for potential extensions of quantum theory. Common knowledge tells us that time flows from the past to the future, but this is not the case for microscopic theories of physics which are neutral with respect to the arrow of time. The authors develop a mathematical framework where certain agents could probe physical processes both forwards and backwards in time, the result of which may provide a framework for potential extensions of quantum theory.
Keyword:
FOUNDATIONS
MAPS
期刊
IF:
5.8
论文数:
2.8K
被引数:
9.2K
机构
引用论文
.png){kind=icon}
P2Y purinoceptors induce changes in intracellular calcium in acinar cells of rat lacrimal glands
PREAI
分享收藏
查看更多内容