## Complexity, Entropy, and the Physics of Information: The Proceedings of the 1988 Workshop on Complexity, Entropy, and the Physics of Information Held May-June, 1989, in Santa Fe, New Mexico |

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Pioneering ground-breaker on "physics" as information (read: affected by and embedded within consciousness) with sling-shot best-of-them-all introduction lecture by John Archibald Wheeler on participatory observation.

### Contents

3 | |

Probability in Quantum Theory | 19 |

Quantum Theory and Measurement 423 | 27 |

Information from Quantum Measurements | 29 |

Local Accessibility of Quantum States | 39 |

The Entropy of Black Holes | 47 |

Some Simple Consequences of the Loss of Information in | 53 |

Why is the Physical World so Comprehensible? | 61 |

Information Dissipation in Quantum Cosmology and | 69 |

Algorithmic Information Content ChurchTuring Thesis | 73 |

Contents | 80 |

### Common terms and phrases

Addison-Wesley algorithmic information content algorithmic information theory algorithmic randomness amount of information atom average Bekenstein binary strings bits black hole blackhole Bohr Cambridge code word communication compression continuum correlation correspondence decoding defined demon density matrix determine the density edited Einstein energy ensemble example existence filter geometrodynamics Hawking independent probabilities inequality information-theoretic integer number J. A. Wheeler Kholevo's theorem laws of physics length mathematics Maxwell's Demon memory minimal program mutual information nature observer-participancy orthogonal particle photon Phys physical entropy physical system Physics of Information Planck Planck area polarization Press Princeton principle prior information quantity quantized quantum channel quantum field Quantum Measurement quantum mechanics quantum system quantum theory question Reprinted result Rindler Santa Fe Institute Sciences of Complexity second law self-delimiting Shannon-Fano codes signal space spacetime statistical information statistical mechanics subsystems thermodynamic Turing machine Univ universal computer Unruh Volume W. H. Zurek Wojciech H Wootters York