# The Bisognano-Wichmann property for asymptotically complete massless QFT

September 26, 2019

We prove the Bisognano-Wichmann property for asymptotically complete Haag-Kastler theories of massless particles. These particles should either be scalar or appear as a direct sum of two opposite integer helicities, thus, e.g., photons are covered. The argument relies on a modularity condition formulated recently by one of us (VM) and on the Buchholz' scattering theory of massless particles.

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@article{Dybalski:2019ojn,
author = "Dybalski, Wojciech and Morinelli, Vincenzo",
title = "{The Bisognano-Wichmann property for asymptotically
complete massless QFT}",
year = "2019",
eprint = "1909.12809",
archivePrefix = "arXiv",
primaryClass = "math-ph",
SLACcitation = "%%CITATION = ARXIV:1909.12809;%%"
}

Keywords:

algebraic quantum field theory, Bisognano Wichmann theorem, scattering theory