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This study applies non-Hermitian holographic flows to model a "Little Rip" cosmology within black hole interiors, challenging standard singularity paradigms like the BKL framework. By linking these extreme gravitational conditions to violations of the null energy condition in symmetric quantum field theories, the work offers a novel theoretical pathway for exploring deep interior geometries.

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Instituto de Física Teórica UAM/CSIC Maps Holographic Flows to Little Rip

Quantum ZeitgeistAugust 20, 20265 min read

Instituto de Física Teórica UAM/CSIC links non-Hermitian holographic flows to Little Rip cosmologies, revealing a novel regime within black hole interiors.

Instituto de Física Teórica UAM/CSIC researchers Daniel Areán, David Garcia-Fariña, and Juan F. Pedraza have discovered a “Little Rip” cosmology, a universe undergoing super-accelerated expansion, within the deep interior geometry of a holographic model. This finding challenges the traditional understanding of cosmological singularities typically described by the Belinski, Khalatnikov, Lifshitz (BKL) paradigm, offering a different pathway to explore these extreme conditions. The work, identified by the preprint IFT-UAM/CSIC-26-86 and licensed on July 15, 2026, reveals this unexpected behavior arises from a non-Hermitian, symmetric quantum field theory. The team found that two-sided heavy-operator correlators exhibit a characteristic imprint, allowing this “Little Rip” regime to…

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