49 citations · 207 across the 13 of their papers we have counts for
14 papers
Causal Fermion Systems as an Effective Collapse Theory
Felix Finster, Johannes Kleiner, Claudio F. Paganini
It is shown that, in the non-relativistic limit, causal fermion systems give rise to an effective collapse theory. The nonlinear and stochastic correction terms to the Schrödinger…
Active Inference in String Diagrams: A Categorical Account of Predictive Processing and Free Energy
Sean Tull, Johannes Kleiner, Toby St Clere Smithe
We present a categorical formulation of the cognitive frameworks of Predictive Processing and Active Inference, expressed in terms of string diagrams interpreted in a monoidal cate…
If consciousness is dynamically relevant, artificial intelligence isn't conscious
Johannes Kleiner, Tim Ludwig
We demonstrate that if consciousness is relevant for the temporal evolution of a system's states--that is, if it is dynamically relevant--then AI systems cannot be conscious. That…
What is a Mathematical Structure of Conscious Experience?
Johannes Kleiner, Tim Ludwig
In consciousness science, several promising approaches have been developed for how to represent conscious experience in terms of mathematical spaces and structures. What is missing…
The Closure of the Physical, Consciousness and Scientific Practice
Johannes Kleiner, Stephan Hartmann
We analyse the implications of the closure of the physical for experiments in the scientific study of consciousness when all the details are considered, especially how measurement…
Dynamics of Causal Fermion Systems. Field Equations and Correction Terms for a New Unified Physical Theory
Johannes Kleiner
The theory of causal fermion systems is a new physical theory which aims to describe a fundamental level of physical reality. Its mathematical core is the causal action principle.…
Falsification and consciousness
Johannes Kleiner, Erik Hoel
The search for a scientific theory of consciousness should result in theories that are falsifiable. However, here we show that falsification is especially problematic for theories…
The Mathematical Structure of Integrated Information Theory
Johannes Kleiner, Sean Tull
Integrated Information Theory is one of the leading models of consciousness. It aims to describe both the quality and quantity of the conscious experience of a physical system, suc…
Integrated Information in Process Theories
Sean Tull, Johannes Kleiner
We demonstrate how the key notions of Tononi et al.'s Integrated Information Theory (IIT) can be studied within the simple graphical language of process theories, i.e. symmetric mo…
Mathematical Models of Consciousness
Johannes Kleiner
In recent years, promising mathematical models have been suggested which aim to describe conscious experience and its relation to the physical domain. Whereas the axioms and metaph…
A Class of Conserved Surface Layer Integrals for Causal Variational Principles
Felix Finster, Johannes Kleiner
In the theory of causal fermion systems, the physical equations are obtained as the Euler-Lagrange equations of a causal variational principle. Studying families of critical measur…
A Hamiltonian Formulation of Causal Variational Principles
Felix Finster, Johannes Kleiner
Causal variational principles, which are the analytic core of the physical theory of causal fermion systems, are found to have an underlying Hamiltonian structure, giving a formula…
Noether-Like Theorems for Causal Variational Principles
Felix Finster, Johannes Kleiner
The connection between symmetries and conservation laws as made by Noether's theorem is extended to the context of causal variational principles and causal fermion systems. Differe…
Causal Fermion Systems as a Candidate for a Unified Physical Theory
Felix Finster, Johannes Kleiner
The theory of causal fermion systems is an approach to describe fundamental physics. Giving quantum mechanics, general relativity and quantum field theory as limiting cases, it is…