期刊
JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN
卷 85, 期 4, 页码 -出版社
PHYSICAL SOC JAPAN
DOI: 10.7566/JPSJ.85.043001
关键词
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资金
- JSPS [26247064]
- MEXT [25107005]
- Grants-in-Aid for Scientific Research [26247064, 25107005] Funding Source: KAKEN
The topological way of thinking now goes beyond quantum solids, and topological characters of classical mechanical systems obeying Newton's law are attracting current interest. To provide a physical insight into the topological numbers in mechanics, we demonstrate the use of the Hannay angle, a classical Berry phase, as a symmetry-protected topological order parameter. The Hannay angle is derived using a canonical transformation that maps Newton's equation to a Schrodinger-type equation, and the condition for the quantization is discussed in connection with the symmetry in mechanics. Also, we demonstrate the use of the Hannay angle for a topological characterization of a spring-mass model focusing on the bulk-edge correspondence.
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