Christopher Langton

Artificial life, Complex Systems

He is a researcher in the field of artificial life and complex systems. He developed many tools and systems that the Alife community still uses today.

He studied many interesting properties of cellular automata, including the influence of the \(\lambda\) parameter on the chaotic behavior of these CA. A phase transition occurs for certain values of \(\lambda\), which was coined the edge of Chaos (Langton 1990).

He created a particular self-replicating cellular automaton: the langton loop (Langton 1984).


  1. . . "Computation at the Edge of Chaos: Phase Transitions and Emergent Computation". Physica D: Nonlinear Phenomena 42 (1-3):12–37. DOI.
  2. . . "Self-reproduction in Cellular Automata". Physica D: Nonlinear Phenomena 10 (1):135–44. DOI.


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