论文标题
石墨烯系统中的Casimir效应：实验和理论
The Casimir effect in graphene systems: Experiment and theory
论文作者
论文摘要
对石墨烯系统中的Casimir效应进行了审查，重点是对测试机构之间短分离的Casimir力的大型热校正。对于原始石墨烯和真实的石墨烯片，给出了Casimir压力和热校正的计算结果，这些石墨烯和真实的石墨烯片具有非零的能隙和化学势，该材料通过精确的极化张量获得。描述了两个实验，以测量使用基于改良的原子力显微镜悬臂技术进行的Au涂层球和石墨烯涂层底物之间的Casimir力梯度。结果表明，两个实验的测量数据都与使用极化张量的Lifshitz理论的理论预测一致。此外，在第二次实验中进行了一些重要的改进，可以证明在短分隔时Casimir相互作用中预测的大量热效应。讨论了这种结果对解决卡西米尔物理学长期问题的可能影响。
The Casimir effect in graphene systems is reviewed with emphasis made on the large thermal correction to the Casimir force predicted at short separations between the test bodies. The computational results for the Casimir pressure and for the thermal correction are presented for both pristine graphene and real graphene sheets, which possess nonzero energy gap and chemical potential, obtained by means of exact polarization tensor. Two experiments on measuring the gradient of the Casimir force between an Au-coated sphere and graphene- coated substrates performed by using a modified atomic force microscope cantilever-based technique are described. It is shown that the measurement data of both experiments are in agreement with theoretical predictions of the Lifshitz theory using the polarization tensor. Additionally, several important improvements made in the second experiment, allowed to demonstrate the predicted large thermal effect in the Casimir interaction at short separations. Possible implications of this result to resolution of long-term problems of Casimir physics are discussed.
