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Path integrals, particular kinds, and strange things.

Karl Friston1, Lancelot Da Costa2, Dalton A R Sakthivadivel3

  • 1Wellcome Centre for Human Neuroimaging, Institute of Neurology, University College London, London WC1N 3AR, UK; VERSES Research Lab, Los Angeles, CA, USA.

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Summary
This summary is machine-generated.

This study introduces a path integral formulation of the free energy principle, enabling emulation of particle behavior in open systems. It proposes that certain "strange" particles exhibit sentience through inferring their own actions.

Keywords:
Active matterBayesianMarkov blanketPath integralSelf-organisationVariational inference

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Area of Science:

  • Theoretical Physics
  • Computational Neuroscience
  • Philosophy of Mind

Background:

  • The free energy principle offers a unified framework for understanding biological systems.
  • Particles are often modeled as isolated entities, neglecting their interaction with the environment.

Purpose of the Study:

  • To formulate a path integral approach to the free energy principle.
  • To develop a principle of least action for emulating particle behavior in open systems.
  • To explore the concept of sentience in different types of particles.

Main Methods:

  • Path integral formulation
  • Variational principles
  • Analysis of particle partitions (internal, external, active, sensory blanket states)

Main Results:

  • A principle of least action for emulating particle behavior in open systems.
  • Demonstration that internal dynamics can infer hidden external states.
  • Classification of particles into dissipative/conservative, inert/active, and ordinary/strange types.
  • Identification of "strange" particles as exhibiting elementary inference and potential agency.

Conclusions:

  • The path integral formulation provides a novel method for studying active inference in physical systems.
  • "Strange" particles, capable of inferring their own actions, represent a potential model for sentient behavior.
  • This framework bridges theoretical physics and the study of consciousness and agency.