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Wave-function collapse in string theory

Nissan Itzhaki

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Phys. Rev. D 114, 046013 – Published 17 August, 2026

DOI: https://doi.org/10.1103/lyyp-3svl

Abstract

One of the most intriguing proposals for wave-function collapse is the Diósi-Penrose model, in which collapse is driven by stochastic fluctuations of the Newtonian potential. We argue that a closely related effective structure can emerge in string theory if, as recently suggested, the present cosmic acceleration is sourced by instant folded strings and their decay products. A key difference, however, is that in this stringy setting the noise is naturally colored in time rather than white. As a result, the scenario is significantly less constrained by existing experiments than the standard Diósi-Penrose model.

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Phys. Rev. D 114, 046013– Published 17 August, 2026
  • Received 1 April 2026
  • Accepted 8 May 2026
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