Why Is the Universe Not Frozen by the Quantum Zeno Effect?

IF 2.1 3区 物理与天体物理 Q2 PHYSICS, MULTIDISCIPLINARY
Entropy Pub Date : 2025-06-18 DOI:10.3390/e27060652
Antoine Soulas
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引用次数: 0

Abstract

We built a discrete model that simulates the ubiquitous competition between the free internal evolution of a two-level system and the decoherence induced by the interaction with its surrounding environment. It is aimed at being as universal as possible, so that no specific Hamiltonian is assumed. This leads to an analytic criterion, depending on the level of short time decoherence, allowing one to determine whether the system will freeze due to the Zeno effect. We checked this criterion on several classes of functions which correspond to different physical situations. In the most generic case, the free evolution wins over decoherence, thereby explaining why the universe is indeed not frozen. We finally make a quantitative comparison with the continuous model of Presilla, Onofrio and Tambini, based on a Lindblad's master equation, a find good agreement at least in the low coupling regime.

为什么宇宙没有被量子芝诺效应冻结?
我们建立了一个离散模型,模拟了两能级系统的自由内部进化和与周围环境相互作用引起的退相干之间的普遍竞争。它的目标是尽可能地普遍,这样就不会假设特定的哈密顿量。这导致了一个分析标准,取决于短时间退相干的水平,允许人们确定系统是否会由于芝诺效应而冻结。我们在对应于不同物理情况的几类函数上检验了这一准则。在最一般的情况下,自由进化战胜了退相干,从而解释了为什么宇宙确实没有冻结。最后,我们基于Lindblad主方程与Presilla, Onofrio和Tambini的连续模型进行了定量比较,至少在低耦合状态下发现了很好的一致性。
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来源期刊
Entropy
Entropy PHYSICS, MULTIDISCIPLINARY-
CiteScore
4.90
自引率
11.10%
发文量
1580
审稿时长
21.05 days
期刊介绍: Entropy (ISSN 1099-4300), an international and interdisciplinary journal of entropy and information studies, publishes reviews, regular research papers and short notes. Our aim is to encourage scientists to publish as much as possible their theoretical and experimental details. There is no restriction on the length of the papers. If there are computation and the experiment, the details must be provided so that the results can be reproduced.
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