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dS/CFT correspondence from a defect operator

Xing Huang*

Chen-Te Ma†

  • *Contact author: xingavatar@gmail.com
  • †Contact author: yefgst@gmail.com
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Phys. Rev. D 114, 026003 – Published 1 July, 2026

DOI: https://doi.org/10.1103/g8mq-cmrg

Abstract

We perform a Wick rotation and analytic continuation from global AdSd+1 to static dSd+1, yielding CFTd generators with a nonstandard adjoint action tied to dS bulk coordinates. To reproduce the real-scalar two-point function, we introduce a global defect operator that twists the inner product. We further show that PT symmetry is spontaneously broken in CFT2 vacua with a central charge having an imaginary part. Finally, we derive integral identities for bulk and defect correlators, providing a unified framework for computing CFTd observables in the presence of global and local defects.

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Phys. Rev. D 114, 026003– Published 1 July, 2026
  • Received 8 April 2026
  • Accepted 15 June 2026
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