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Massive gravity acausality redux
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DOI：10.1016/j.physletb.2013.09.001.png)
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En 中文
Massive gravity (mGR) is a 5(= 2s + 1) degree of freedom, finite range extension of GR. However, amongst other problems, it is plagued by superluminal propagation, first uncovered via a second order shock analysis. First order mGR shock structures have also been studied, but the existence of superluminal propagation in that context was left open. We present here a concordance of these methods, by an explicit (first order) characteristic matrix computation, which confirms mGR's superluminal propagation as well as acausality. (C) 2013 Elsevier B.V. All rights reserved.
Keyword:
POINCARE GAUGE-THEORY
NONLINEAR REALIZATIONS
HAMILTONIAN ANALYSIS
SPIN
INCONSISTENCY
CONSTRAINT
FIELD
期刊
IF:
4.5
论文数:
3.2W
被引数:
7.3W
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