arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 1606.03205cond-mat.stat-mechcond-mat.quant-gas
收藏

量子临界系统状态方程中的临界Casimir力

Critical Casimir forces from the equation of state of quantum critical systems

Adam Rancon, Louis-Paul Henry, Félix Rose, David Lopes Cardozo, Nicolas Dupuis, Peter C. W. Holdsworth, Tommaso Roscilde

摘要:

经典长度和作为虚时间的逆温度之间的映射提供了$D$维度中的经典系统的卡西米尔力和$d$ $=$ $D$ $-$ $1$维度中的量子系统的内能之间的直接等价。因此,具有周期边界的经典系统的临界Casimir力的标度函数出现从对称性相关的量子临界点的分析。我们表明,无论是非微扰的重整化群和量子临界点的量子蒙特卡罗分析提供了定量估计的临界Casimir力在相应的经典模型,获得广泛不同的纵横比的几何约束系统。根据这些结果,我们提出了通过最先进的冷原子和固态实验实现周期性边界的临界Casimir力的实验方案。

英文摘要:

The mapping between a classical length and inverse temperature as imaginary time provides a direct equivalence between the Casimir force of a classical system in $D$ dimensions and internal energy of a quantum system in $d$$=$$D$$-$$1$ dimensions. The scaling functions of the critical Casimir force of the classical system with periodic boundaries thus emerge from the analysis of the symmetry related quantum critical point. We show that both non-perturbative renormalization group and quantum Monte Carlo analysis of quantum critical points provide quantitative estimates for the critical Casimir force in the corresponding classical model, giving access to widely different aspect ratios for the geometry of confined systems. In the light of these results we propose protocols for the experimental realization of critical Casimir forces for periodic boundaries through state-of-the-art cold-atom and solid-state experiments.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

↑