对非反对称场序列的动态相位过渡附近的缩放行为的验证
1CIC nanoGUNE BRTA, E-20018 Donostia-San Sebastián, Spain.
Physical review. E
|June 22, 2024
概括
我们发现,磁力动态顺序参数缩放在动态相位过渡附近是保留的,即使在不对称的时间依赖磁场. 一个通用联场重新建立对称性,保持普遍的行为.
科学领域:
- 凝聚物质物理学 凝聚物质物理学
- 统计力学 统计力学
- 磁力学 磁力学 是一种
背景情况:
- 研究动态相变 (DPT) 对于理解非平衡系统至关重要.
- 在依赖时间的场中,磁性顺序参数的行为是复杂的.
- 应用场的对称性属性可以显著影响系统动态.
研究的目的:
- 检查在DPT附近磁力动态顺序参数 (Q) 的缩放行为.
- 为了确定与缺乏半波反对称性的周期磁场保持缩放.
- 探索一个通用联场在恢复时间逆转对称性的作用.
主要方法:
- 平均场计算被用来分析系统.
- 定义了一个通用联场 (H*),以恢复时间逆向对称.
- 动态相当于Arrott-Noakes状态方程被用于数据分析.
主要成果:
- 动态顺序参数 (Q) 的缩放在接近第二顺序相位过渡时得到保留.
- 一个合适的通用联场 (H*) 成功地恢复了时间逆转对称性.
- 进行了对Q的周期 (P) 和并联场 (H*) 依赖性的同时缩放分析.
结论:
- 即使在不对称的时间场序列中,也保持了缩放行为和普遍性.
- 这些发现扩大了对驱动磁系统中关键现象的理解.
- 这项工作为在更一般的现场条件下分析DPT提供了一个框架.
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