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Information as a physical entity, entropy and life. Complexity Explorers Krakow.

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Slides are intro & outro to Radosław Kycia prezentation "Information as a physical entity, entropy and life" - http://fizyk.ifpk.pk.edu.pl/~rkycia/seminars/ComplexityExplorers5_12_2019.pdf. Meetup of Complexity Explorers Krakow group http://www.cekrk.com.

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Information as a physical entity, entropy and life. Complexity Explorers Krakow.

  1. 1. Information as a physical entity, entropy and life
  2. 2. src: www.adamwalanus.pl/2016/chaitin/160519-1804-19.jpg Paul Davies Photo by Cmichel67 - Own work, CC BY-SA 4.0, https://commons.wikimedia.org/w/index.php?curid=47606311
  3. 3. src: www.adamwalanus.pl/2016/chaitin/160519-1804-19.jpg https://youtu.be/X_tYrnv_o6A Your Body's Molecular Machines
  4. 4. Radosław A. Kycia Information as a physical entity, entropy and life http://fizyk.ifpk.pk.edu.pl/~rkycia/seminars/ComplexityExplorers5_12_2019.pdf
  5. 5. The three-way trade-off of information 1. Maxwell’s and Shilard’s demons process information to convert heat into work 2. Information engines turn information into heat or dump entropy into an empty information register 3. Conventional engines use heat to work → destroys information Information Work Heat
  6. 6. Programmable Mechanical Maxwell’s Demon by Zhiyue Lu and Christopher Jarzynski https://www.mdpi.com/1099-4300/21/1/65 2014: converts random thermal motion into directional rotation that could be used to raise a weight, but in so doing the output state of the blades is now a random mixture of 1s and 0s. thus converts heat into work and writes information into a register https://youtu.be/LkYljJ__-Cs 2019: can be programmed to recognize a chosen reference e.g: π If the bits in the memory register match those of the reference sequence, then the device extracts heat from the thermal reservoir and converts it into work to lift a small mass. From “The Demon in the Machine” by Paul Davies, 2019
  7. 7. Thank you

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