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Quantum M^2 -> 2Lambda/3 discontinuity for massive gravity with a Lambda term | | M. J. Duff
; James T. Liu
; H. Sati
; | | Date: |
2 May 2001 | | Journal: | Phys.Lett. B516 (2001) 156-160 | | Subject: | hep-th gr-qc | | Abstract: | In a previous paper we showed that the absence of the van Dam-Veltman-Zakharov discontinuity as M^2 -> 0 for massive spin-2 with a Lambda term is an artifact of the tree approximation, and that the discontinuity reappears at one loop, as a result of going from five degrees of freedom to two. In this paper we show that a similar classical continuity but quantum discontinuity arises in the "partially massless" limit M^2 -> 2Lambda/3, as a result of going from five degrees of freedom to four. | | Source: | arXiv, hep-th/0105008 | | Services: | Forum | Review | PDF | Favorites | |
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