Comparison of hydrodynamic model of graphene with recent experiment on measuring the Casimir interaction

被引：25

作者：

Klimchitskaya, G. L. ^{[1
]}

Mostepanenko, V. M.

机构：

[1] Russian Acad Sci, Cent Astron Observ Pulkovo, St Petersburg 196140, Russia

来源：

PHYSICAL REVIEW B | 2015年 / 91卷 / 04期

关键词：

FORCE; CONSTRAINTS; ENERGIES; SHEETS;

D O I：

10.1103/PhysRevB.91.045412

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We obtain the reflection coefficients from a graphene sheet deposited on a material substrate under a condition that graphene is described by the hydrodynamic model. Using these coefficients, the gradient of the Casimir force in the configuration of a recent experiment is calculated in the framework of the Lifshitz theory. It is shown that the hydrodynamic model is excluded by the measurement data at a 99% confidence level over a wide range of separations. From the fact that the same data are in very good agreement with theoretical predictions of the Dirac model of graphene, the low-energy character of the Casimir interaction is confirmed.

引用

页数：5

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