对于横向移动的石墨烯,正常的卡西米尔-利夫希茨力
Mauro Antezza1,2, N Emelianova3, N Khusnutdinov3
1Laboratoire Charles Coulomb (L2C), UMR 5221 CNRS-University of Montpellier, F-34095 Montpellier, France.
Nanotechnology
|February 29, 2024
概括
我们计算了平行石墨烯板以相对速度移动的卡西米尔能量. 卡西米尔力显示了取决于速度的校正,特别是对于石墨烯/石墨烯系统,对金属/石墨烯的费米速度的影响最小.
科学领域:
- 凝聚物质物理学 凝聚物质物理学
- 量子场理论 量子场理论
- 材料科学 材料科学 材料科学
背景情况:
- 卡西米尔效应描述了一种在两个无电荷导体体之间作用的物理力,它是由电磁场的量子波动引起的.
- 石墨烯是一种单一的碳原子层,具有独特的电子特性,使其成为研究诸如卡西米尔效应之类的量子现象的引人注目的材料.
研究的目的:
- 为了研究相对平行速度对两个平行石墨烯板之间的卡西米尔能量和力的影响.
- 将石墨烯/石墨烯系统中的卡西米尔力与相对运动下的理想金属/石墨烯系统的卡西米尔力进行比较.
主要方法:
- 使用散射方法计算所考虑系统的卡西米尔能量.
- 分析了正常的 (垂直于平面的) 卡西米尔力,专注于非相对论速度 (v ≪ vF).
主要成果:
- 对于石墨烯/石墨烯系统,对卡西米尔能量的相对校正是与 (v/c) ^2成比例的,在v = vF (费尔米速度) 时达到0.0033的最大值.
- 对于理想的金属/石墨烯系统,对卡西米尔能量的相对校正保持在零,直到费米速度 (v = vF).
结论:
- 相对运动显著影响石墨烯系统中的卡西米尔力,引入了取决于速度的校正.
- 与理想的金属/石墨烯接口相比,石墨烯/石墨烯接口对相对速度的反应更为明显,特别是在接近费米速度的更高速度时.
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