科研之友
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摘要
Filling a much-needed gap, we exhibit the D = 4 Fierz-Pauli massive s = 2 action, and its - manifestly positive - energy, in terms of its 2s + 1 = 5 unconstrained helicity (2, 1, 0) excitations, after reducing and diagonalizing the troublesome helicity-zero sector.
- 出版日期2015-4
