引力子的量子特性。

IF 3.9 2区 综合性期刊 Q1 MULTIDISCIPLINARY SCIENCES
Elhabib Jaloum, Mohamed Amazioug, Saeed Haddadi
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引用次数: 0

摘要

我们探索了由两个量子比特模拟的两个引力猫(gravcats)的量子特征,重点研究了在引力相互作用强度、温度和激发能等不同条件下的量子可操控性、并发性和几何量子不和谐。我们首先分析了没有减相效应的系统,揭示了双向量子转向在较低温度和较高引力相互作用强度下发生。随着温度的升高,热噪声降低了可操纵性,尽管引力效应仍然显著,表明依赖于能量和质量尺度的非单调行为。此外,量子相关表现出层次结构,即使方向性和纠缠消失,几何量子不和谐也会持续存在。然后,我们探讨了环境减相和经典相关性对系统动力学的影响。我们的研究结果表明,相关消相通道中的经典关联可以保护量子资源,增强其在马尔可夫和非马尔可夫状态下的稳定性。这项工作强调了引力相互作用、热效应和环境噪声在保护量子资源中的复杂相互作用。
本文章由计算机程序翻译,如有差异,请以英文原文为准。

Quantum features of gravcats.

Quantum features of gravcats.

Quantum features of gravcats.

Quantum features of gravcats.

We explore the quantum features of two gravitational cats (gravcats) modeled by two qubits, focusing on quantum steerability, concurrence, and geometric quantum discord under varying conditions of gravitational interaction strength, temperature, and excitation energy. We first analyze the system without dephasing effects, revealing that two-way quantum steering occurs at lower temperatures and higher gravitational interaction strengths. As temperature increases, thermal noise reduces steerability, though gravitational effects remain significant, indicating a non-monotonic behavior dependent on energy and mass scales. Furthermore, quantum correlations exhibit a hierarchy, with geometric quantum discord persisting even when steering and entanglement vanish. We then explore the impact of environmental dephasing and classical correlations on the system's dynamics. Our findings demonstrate that classical correlations in correlated dephasing channels can protect quantum resources, enhancing their stability in both Markovian and non-Markovian regimes. This work highlights the intricate interplay between gravitational interactions, thermal effects, and environmental noise in preserving quantum resources.

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来源期刊
Scientific Reports
Scientific Reports Natural Science Disciplines-
CiteScore
7.50
自引率
4.30%
发文量
19567
审稿时长
3.9 months
期刊介绍: We publish original research from all areas of the natural sciences, psychology, medicine and engineering. You can learn more about what we publish by browsing our specific scientific subject areas below or explore Scientific Reports by browsing all articles and collections. Scientific Reports has a 2-year impact factor: 4.380 (2021), and is the 6th most-cited journal in the world, with more than 540,000 citations in 2020 (Clarivate Analytics, 2021). •Engineering Engineering covers all aspects of engineering, technology, and applied science. It plays a crucial role in the development of technologies to address some of the world''s biggest challenges, helping to save lives and improve the way we live. •Physical sciences Physical sciences are those academic disciplines that aim to uncover the underlying laws of nature — often written in the language of mathematics. It is a collective term for areas of study including astronomy, chemistry, materials science and physics. •Earth and environmental sciences Earth and environmental sciences cover all aspects of Earth and planetary science and broadly encompass solid Earth processes, surface and atmospheric dynamics, Earth system history, climate and climate change, marine and freshwater systems, and ecology. It also considers the interactions between humans and these systems. •Biological sciences Biological sciences encompass all the divisions of natural sciences examining various aspects of vital processes. The concept includes anatomy, physiology, cell biology, biochemistry and biophysics, and covers all organisms from microorganisms, animals to plants. •Health sciences The health sciences study health, disease and healthcare. This field of study aims to develop knowledge, interventions and technology for use in healthcare to improve the treatment of patients.
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