[HN Gopher] Scientists prove particles in a quantum system can b...
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       Scientists prove particles in a quantum system can be rejuvenated
        
       Author : belter
       Score  : 29 points
       Date   : 2023-02-22 13:49 UTC (1 days ago)
        
 (HTM) web link (english.elpais.com)
 (TXT) w3m dump (english.elpais.com)
        
       | anthk wrote:
       | Enhorabuena .
        
       | belter wrote:
       | "Resetting Uncontrolled Quantum Systems" -
       | https://journals.aps.org/prx/abstract/10.1103/PhysRevX.8.031...
       | 
       | "Translating Uncontrolled Systems in Time" - https://quantum-
       | journal.org/papers/q-2020-12-15-374/
       | 
       | "A universal quantum rewinding protocol with an arbitrarily high
       | probability of success" - https://arxiv.org/abs/2205.01131
       | 
       | "Detection of Quantum Signals Free of Classical Noise via Quantum
       | Correlation" -
       | https://journals.aps.org/prl/abstract/10.1103/PhysRevLett.13...
       | 
       | "Demonstration of universal time-reversal for qubit processes" -
       | https://opg.optica.org/optica/fulltext.cfm?uri=optica-10-2-2...
        
       | Out_of_Characte wrote:
       | "you can run it without knowing about the system, its internal
       | dynamics, or even the details of the interaction between the
       | system and the experimenter."
       | 
       | The scientific meta right now seems to almost contradict itself
       | in the english language. Is there any tool/book out there that
       | could help me understand quantum dynamics and its limitation
       | better?
       | 
       | I'm having trouble understanding how the proof of this is
       | supposed to look like.
        
       | m3kw9 wrote:
       | " Navascues said, "If you want a system to age 10 years, it will
       | take 10 years. You can't create time out of nothing. To make a
       | system age 10 years in one year, you must get the other nine
       | years from somewhere." Using this logic, the scientific team hit
       | upon a trick to speed up time. "We discovered that you can
       | transfer evolutionary time between identical physical systems. In
       | a year-long experiment with 10 systems, you can steal one year
       | from each of the first nine systems and give them all to the
       | tenth. At the end of the year, the tenth system will have aged 10
       | years; the other nine will remain the same as when the experiment
       | began."
       | 
       | Just leaving it right there
        
         | izzydata wrote:
         | Being completely unknowledgeable of this topic it reminds me of
         | zinc anode on a ship to take all of the effects of rusting from
         | other parts.
        
           | SketchySeaBeast wrote:
           | Except in this case it seems to be waiting for the ship to
           | rust and then using the anode to unrust it?
        
         | eli_gottlieb wrote:
         | I really wish these kinds of articles would give us at least a
         | hint as to the math actually at work here, and what kind of
         | example systems they're working with in their experiments. As-
         | is, this kind of metaphorical hand-waving gives the impression
         | that vastly more is claimed than anyone can possibly have
         | demonstrated in the linked publications.
        
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       (page generated 2023-02-23 23:02 UTC)