潜在的基态能量的完全分布,具有弱无序的潜能
1Ben-Gurion University of the Negev, Hebrew University of Jerusalem, Racah Institute of Physics, Jerusalem 91904, Israel and Department of Environmental Physics, Blaustein Institutes for Desert Research, Sede Boqer Campus 8499000, Israel.
Physical review. E
|February 7, 2025
概括
我们分析了量子粒子在无序电位中的基本状态能量分布. 该研究揭示了无序系统中的相变,显示了能量分布函数中的自发对称性破坏和非分析性行为.
科学领域:
- 量子力学就是量子力学.
- 统计物理学的统计物理.
- 凝聚物质物理学 凝聚物质物理学
背景情况:
- 对于理解复杂的物理系统来说,研究具有决定性和无序组件的潜在的量子粒子行为至关重要.
- 基态能量分布是表征这些系统的低能量特性的关键.
研究的目的:
- 调查单个量子粒子的基本状态能量在一个潜在的完全分布,结合一个背景陷和白噪声障碍.
- 在各种系统极限和维度中分析大偏差函数s(E) 的行为.
- 为了识别和描述由混乱驱动的潜在相位过渡.
主要方法:
- 在弱失序极限 (ε→0) 中对基态能量分布 P(E) 的分析,揭示了一个缩放 P(E) ∼e^{-s(E) /ε}.
- 通过确定给定基态能量最可能的潜在配置来计算大偏差函数s(E).
- 对无限系统的分析计算 (极限E→±∞,EE0) 和对d={1,2,3}中的波陷的明确计算.
- 对有限,周期性1D系统的s(E) 的精确计算,在临界能量E<0.0的情况下显示非分析性行为.
主要成果:
- 在弱失序极限中,P (E) 遵循由s (E) 支配的大偏差缩放.
- 对于无限系统和特定潜能,如波陷,可以获得s(E) 的分析结果.
- 在有限的1D系统中确定了E<0的临界能量,导致最可能的潜在配置发生突然变化.
- 该系统表现出自发的翻译对称性破裂低于E<0,导致非分析的s(E) 和二次动态相位过渡.
结论:
- 该研究提供了对无序量子系统中基本状态能量分布的全面分析.
- 发现了一种新的第二阶段动态相位过渡,其特点是由混乱驱动的自发对称性破坏.
- 这些发现提供了关于量子系统在混乱状态下的基本行为和凝聚物质物理学中的潜在应用的见解.
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