Journal of High Energy Physics (Apr 2019)

p-adic CFT is a holographic tensor network

  • Ling-Yan Hung,
  • Wei Li,
  • Charles M. Melby-Thompson

DOI
https://doi.org/10.1007/JHEP04(2019)170
Journal volume & issue
Vol. 2019, no. 4
pp. 1 – 39

Abstract

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Abstract The p-adic AdS/CFT correspondence relates a CFT living on the p-adic numbers to a system living on the Bruhat-Tits tree. Modifying our earlier proposal [1] for a tensor network realization of p-adic AdS/CFT, we prove that the path integral of a p-adic CFT is equivalent to a tensor network on the Bruhat-Tits tree, in the sense that the tensor network reproduces all correlation functions of the p-adic CFT. Our rules give an explicit tensor network for any p-adic CFT (as axiomatized by Melzer), and can be applied not only to the p-adic plane, but also to compute any correlation functions on higher genus p-adic curves. Finally, we apply them to define and study RG flows in p-adic CFTs, establishing in particular that any IR fixed point is itself a p-adic CFT.

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