Integrated Information in Process Theories: Towards Categorical IIT

Year
2021
Volume 22
Issue 2
Pages
92-123
Authors
Sean Tull and Johannes Kleiner
Abstract
We demonstrate how integrated information and other key notions from Tononi et al.’s Integrated Information Theory (IIT) can be
studied within the simple graphical language of process theories (symmetric monoidal categories). This allows IIT to be
generalised to a broad range of physical theories, including as a special case the Quantum IIT of Zanardi, Tomka and Venuti,
and sets the foundation for a categorical definition of IIT.