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   sci.physics.research      Current physics research. (Moderated)      17,516 messages   

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   Message 17,036 of 17,516   
   Sylvia Else to Chris Jacobs   
   Re: quantum teleportation and time rever   
   13 Jun 22 12:39:11   
   
   From: sylvia@email.invalid   
      
   On 13-June-22 5:28 am, Chris Jacobs wrote:   
   > In popular descriptions of quantum teleportation I see time and again   
   > that it is explained by spooky action at a distance which is also   
   > simultaneous.   
   > Now I know from relativity that if the action is simultaneous in one   
   > frame the effect appears _before_ the cause in other frames.   
   > If I am going to believe in time reversal for one frame it is no big   
   > step for me to believe in time reversal for all frames, the effect   
   > occurring in the past light cone of the cause.   
   > If you explain it that way you can get away with spooky action at a   
   > distance.   
   > any comments?   
   >   
   > Chris   
      
   The very fact that we can see this time reversal in the theory, together   
   with the fact that these processes cannot be used to send information   
   faster than light, is a good reason to think that there is no action at   
   a distance, spooky or otherwise. In particular, the time reversal   
   immediately raises the question of who is the actor, and who the actee[*]   
      
   Quantum mechanics tells us what results we'll get. It doesn't say   
   anything about how it works, and popular science descriptions are   
   usually just misleading.   
      
   Sylvia.   
      
   [*] Spell check says that this isn't a word, but what does it know?   
      
   --- SoupGate-Win32 v1.05   
    * Origin: you cannot sedate... all the things you hate (1:229/2)   

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