摘要： We show that topological order and vibrational edge modes can exist in a classical mechanical system consisting of a two-dimensional honeycomb lattice of masses and springs. The band structure shows the existence of Dirac cones and unconventional edge states that are similar to the vibrational modes in graphene. Interestingly, as the system is placed on a constantly rotational coordinate system, the Coriolis force resulting from the non-inertial reference frame introduces time-reversal symmetry breaking and leads to topologically nontrivial band gaps. The nontrivial topological orders are further verified by the calculation of Chern numbers for corresponding bands. 其他題名： NJP 其他題名： New J. Phys 出版者： Bristol: IOP Publishing 出版日期： 2015-07-31 出處： New Journal of Physics, 2015-07, Vol.17 (7), p.73031 資源來源： Institute of Physics Open Access Journal Titles 版權： 2015 IOP Publishing Ltd and Deutsche Physikalische Gesellschaft 版權： 2015. This work is published under http://creativecommons.org/licenses/by/3.0/ (the “License”). Notwithstanding the ProQuest Terms and Conditions, you may use this content in accordance with the terms of the License. 識別號： ISSN: 1367-2630 識別號： EISSN: 1367-2630 識別號： DOI: 10.1088/1367-2630/17/7/073031 識別號： CODEN: NJOPFM
