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Generalized symmetries generating Noether currents and canonical conserved quantities
被引:3
|作者:
Palese, Marcella
[1
]
Winterroth, Ekkehart
[1
]
机构:
[1] Univ Turin, Dept Math, Via CA Lberto 10, I-10124 Turin, Italy
来源:
关键词:
jet bundle;
generalized symmetry;
Noether current;
conserved quantity;
cohomology;
LOCAL VARIATIONAL-PROBLEMS;
D O I:
10.1088/1742-6596/563/1/012023
中图分类号:
O59 [应用物理学];
学科分类号:
摘要:
We determine the condition for a Noether-Bessel-Hagen current, associated with a generalized symmetry, to be variationally equivalent to a Noether current for an invariant Lagrangian. We show that, if it exists, this Noether current is exact on-shell and generates a canonical conserved quantity.
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页数:4
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