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arXiv · 2609.17663

Full Eigenstate Thermalization in Quantum Field Theory and Gravitational Scrambling

Ricardo Espíndola·Viktor Jahnke
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Abstract

Using thermal analyticity, we derive directional large-frequency bounds on the smooth functions entering full eigenstate thermalization in continuum quantum field theory. The strongest directions reproduce the scales previously identified for lattice systems, while the complete analyticity domain reveals an asymmetric multifrequency structure. Thermal conformal correlators saturate the second- and third-order bounds, and the leading gravitational Regge contribution saturates the strongest fourth-order direction.

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Ricardo Espíndola, Viktor Jahnke. 2026-09-15. Full Eigenstate Thermalization in Quantum Field Theory and Gravitational Scrambling. https://arxiv.org/abs/2609.17663

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