In search of local degrees of freedom in quadratic diff-invariant Lagrangians
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Barbero, J. Fernando
Sánchez Villaseñor, Eduardo Jesús
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Abstract
We show that local diff-invariant free field theories in four spacetime dimensions do not have local degrees of freedom.
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Barbero G., J. F., & Villaseñor, E. J. S. (2000). In search of local degrees of freedom in quadratic diff-invariant Lagrangians. Physical Review D - Particles, Fields, Gravitation and Cosmology, 61(10). DOI: 10.1103/PhysRevD.61.104014