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太阳爆量子伊辛模型在相互作用火下:初始状态连贯性的纠和作用
Akash Mitra1, Shashi C L Srivastava1
1Variable Energy Cyclotron Centre, 1/AF Bidhannagar, Kolkata 700064, India and Homi Bhabha National Institute, Training School Complex, Anushaktinagar, Mumbai 400094, India.
Physical review. E
|December 20, 2023
概括
这项研究探讨了相互作用灭后的量子系统动态,揭示了光谱性质过渡和纠如何表明热化. 最初状态的连贯性显著影响系统是否达到热化或非热化状态.
科学领域:
- 量子物理学的量子物理学
- 凝聚物质物理学 凝聚物质物理学
- 统计力学就是统计力学.
背景情况:
- 研究孤立的量子系统揭示了基本物理.
- 不平衡动力学对于理解复杂的量子行为至关重要.
- 量子伊辛模型是探索相位转换和关键现象的关键系统.
研究的目的:
- 在相互作用火下研究太阳爆发量子Ising模型的非平衡动力学.
- 分析从可整合到混乱行为的过渡及其对热化的影响.
- 确定初始状态连贯性在热化过程中的作用.
主要方法:
- 利用了太阳爆发量子伊辛模型,一个双方系统.
- 应用了相互作用灭器来研究灭后的动力学.
- 采用纠作为热化的探测器.
- 检查了光谱波动属性,从波桑统计学过渡到维格纳-戴森统计学.
- 研究了初始状态连贯性的影响.
主要成果:
- 观察到光谱波动从波桑到维格纳-戴森统计数据的过渡,相互作用强度增加.
- 纠 Entropy 在接近整合的极限中显示了振荡行为,在混乱的极限中显示了和.
- 证明初始状态连贯性对于确定热化结果至关重要.
- 将发现扩展到多体局部化阶段的无序XXZ模型中,证实了普遍性.
结论:
- 相互作用强度,初始状态连贯性和系统整合性之间的相互作用决定了孤立量子系统中的热化.
- 纠是热化或缺乏热化的可靠指标.
- 观察到的现象是强大的,适用于不同的量子模型,包括那些表现出多体定位的量子模型.
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