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Partially massless spin-2 electrodynamics

Deser, S. and Waldron, A. (2006) Partially massless spin-2 electrodynamics. Physical Review D, 74 (8). Art. No. 084036. ISSN 2470-0010.

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Maximal depth, partially massless, higher spin excitations can mediate charged matter interactions in a de Sitter universe. This result is motivated by similarities between these theories and their traditional Maxwell counterpart: their propagation is lightlike and corresponds to the same Laplacian eigenmodes as the de Sitter photon; they are conformal in four dimensions; their gauge invariance has a single scalar parameter and actions can be expressed as squares of single derivative curvature tensors. We study this effect in detail for its simplest spin 2 example: It is possible to construct a natural and consistent interaction scheme with conserved vector electromagnetic currents primarily coupled to the helicity 1 partially massless modes. The resulting current-current single "partial-photon" exchange amplitude is the (very unCoulombic) sum of contact and shorter-range terms, so the partial photon cannot replace the traditional one, but rather modifies short range electromagnetic interactions. We also write the gauge invariant fourth-derivative effective actions that might appear as effective corrections to the model, and give their contributions to the tree amplitude.

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Deser, S.0000-0001-9285-9434
Additional Information:© 2006 The American Physical Society (Received 19 September 2006; published 31 October 2006) It is a pleasure to thank Rod Gover for useful discussions. A.W. thanks the École Normale Superieure, Paris for hospitality. This work was supported by the National Science Foundation under grants No. PHY04-01667 and PHY-01-40365.
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Issue or Number:8
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Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:6190
Deposited By: Archive Administrator
Deposited On:28 Nov 2006
Last Modified:02 Oct 2019 23:30

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