Quantum Information, the Ambiguity of the Past, and the Birth ... - PiTP

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Returning to Science, it seems there are 3 levels of privacy. • Quantum: Information like the path taken in an interferometer, that exists only temporarily, and afterward can best be thought of as never having existed. • Classically Private: Information that has been amplified to the point of becoming classical, but is not widely distributed in easily recoverable form. Humans can erase it, then lie about it with impunity, although perhaps not without guilt. • Public: Information that is so widely distributed that it is infeasible to conceal. Lying about it only makes you look foolish.
Nowadays, it is tempting to believe that once information has become public, it can never be wholly destroyed. The modern world appears very different in this regard from the ancient pre- Gutenberg era, when major literary works were written down, performed, and widely known, but then lost. Ancient Greek poet Sappho, ca 620-525 BC, as depicted by Gustav Klimt ca 1900.
Page 1 and 2: Quantum Information, the Ambiguity
Page 3 and 4: After the experiment is over, even
Page 5 and 6: (This typically happens when the en
Page 7: To the amazement of most of the res
Page 11 and 12: Even in today’s world, much macro
Page 13 and 14: But I think some information really
Page 16 and 17: So we are motivated to add a new le
Page 18 and 19: How to obliterate earthly evidence
Page 20 and 21: But suppose we wanted to store not
Page 22 and 23: Can we arrange for escaped informat
Page 24 and 25: • Can we outrun the radiation? Fo
Page 26: Ontological Status of Escaped Infor
Page 29 and 30: • Is random input (eg radiation f
Page 31 and 32: Up to now, I have considered only g
Page 33 and 34: Looking inside a pottery kiln by it
Page 35 and 36: Most classical information, such as
Page 37 and 38: Enough about information & remember
Page 39 and 40: Self-organization, the spontaneous
Page 41 and 42: Wake behind Stepping Stone (Kamo Ri
Page 43 and 44: In the philosophy of science, the p
Page 45 and 46: A trivially orderly sequence like 1
Page 47 and 48: At equilibrium, complexity still pe
Page 49 and 50: Conversely, what else is required,
Page 51 and 52: Dissipation without Complexity 50 C
Page 53 and 54: Are some dissipative environments s
Page 55 and 56: Extra Slides
Page 57 and 58: The input/output graph of this or a
Page 59 and 60:
Problem: scaling with number: we wo
Page 61 and 62:
Two Upper Neighbors Past Future Two
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Information budget for random permu
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Quantum Information, the Ambiguity of the Past, and the Birth ... - PiTP

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