Projectively equivalent 2-dimensional superintegrable systems with projective symmetries
Projectively equivalent 2-dimensional superintegrable systems with projective symmetries
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具有射影对称性的射影等效二维超可积系统
DOI:
10.1088/1751-8121/ab6fc5
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发表时间:
2020
期刊:
影响因子:
--
通讯作者:
Andreas Vollmer
中科院分区:
文献类型:
--
作者:
Andreas Vollmer
This paper combines two classical theories, namely metric projective differential geometry and superintegrability. We study superintegrable systems on 2-dimensional geometries that share the same geodesics, viewed as unparametrized curves. We give a definition of projective equivalence of such systems, which may be considered the projective analog of (conformal) Stäckel equivalence (coupling constant metamorphosis). Then, we discuss the transformation behavior for projectively equivalent superintegrable systems and find that the potential on a projectively equivalent geometry can be reconstructed from a characteristic vector field. Moreover, potentials of projectively equivalent Hamiltonians follow a linear superimposition rule. The techniques are applied to several examples. In particular, we use them to classify, up to Stäckel equivalence, the superintegrable systems on geometries with one, non-trivial projective symmetry.
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