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arXiv · 2107.11883

A freely falling graviton in the D1D5 CFT

Bin Guo·Shaun Hampton
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Abstract

We study a freely falling graviton propagating in AdS in the context of the D1D5 CFT, where we introduce an interaction by turning on a deformation operator. We start with one left and right moving boson in the CFT. After applying two deformation operators, the initial bosons split into three left moving and three right moving bosons. We compute the amplitude for various energies and extrapolate the result to the large energy region. At early times, the amplitude is linear in time. This corresponds to an infalling graviton becoming redshifted in AdS. At late times, the amplitude is periodic, which agrees with the fact that a freely falling graviton will not be thermalized.

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Bin Guo, Shaun Hampton. 2021-07-25. A freely falling graviton in the D1D5 CFT. https://arxiv.org/abs/2107.11883

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