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  • Letter
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Worldsheet from worldline

Umut Gürsoy and Guim Planella Planas

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Phys. Rev. D 114, L021905 – Published 23 July, 2026

DOI: https://doi.org/10.1103/25tp-mqfv

Abstract

We take a step toward a “microscopic” derivation of gauge-string duality. In particular, using mathematical techniques of Strebel differentials and discrete exterior calculus, we obtain bosonic string worldsheet action for string embedded in d+1-dimensional asymptotically anti–de Sitter space from multiloop Feynman graphs of quantum field theory of scalar matrices in d-dimensions in the limit of diverging loop number. Our work is building on the program started by ’t Hooft in 1974, this time including the holographic dimension, which we show to emerge from the continuum of Schwinger parameters of Feynman diagrams.

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Phys. Rev. D 114, L021905– Published 23 July, 2026
  • Received 24 January 2024
  • Accepted 6 July 2026
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Published by the American Physical Society under the terms of the Creative Commons Attribution 4.0 International license. Further distribution of this work must maintain attribution to the author(s) and the published article’s title, journal citation, and DOI. Funded by SCOAP3.

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