期刊
JOURNAL OF HIGH ENERGY PHYSICS
卷 -, 期 4, 页码 -出版社
SPRINGER
DOI: 10.1007/JHEP04(2013)164
关键词
Gauge-gravity correspondence; AdS-CFT Correspondence; Gauge Symmetry; Electromagnetic Processes and Properties
资金
- ERC
- IISN-Belgium [4.4514.08, 4.4511.06]
- Communaute Francaise de Belgique through the ARC program
We show that holography poses non-trivial restrictions on various couplings of an interacting field. For a vector boson in the AdS Reissner-Nordstrom background, the dual boundary theory is pathological unless its electromagnetic and gravitational multi-pole moments are constrained. Among others, a generic dipole moment afflicts the dual CFT with superluminal modes, whose remedy bounds the gyromagnetic ratio in a range around the natural value g = 2. We discuss the CFT implications of our results, and argue that similar considerations can shed light on how massive higher-spin fields couple to electromagnetism and gravity.
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