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

Article

关键词: FORCE;    CONSTRAINTS;    ENERGIES;    SHEETS;   

DOI  :  10.1103/PhysRevB.91.045412

来源: SCIE

【 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.

【 授权许可】

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