5 ms·

How else would we teleport matter, if it wasn't via information representing that matter?

krapp 7y ago
Star Trek "does it" by literally converting matter into energy, beaming that energy to a remote point, then converting it back into matter... in place... somehow by teching the tech. That's usually what people mean when they say "teleportation" - actually somehow instantaneously moving a thing from point A to B, rather than transferring its state. I'm not certain whether somehow mass-entangling an entire object with something else that receives its state and becomes a perfect (or near perfect because real life doesn't have "Heisenberg compensators" like Trek, to compensate for the Heisenberging) copy of the original is more or less ridiculous than Star Trek's version.
- Koshkin 7y ago
  > That's usually what people mean when they say Not everyone thinks in terms of Star Trek...
  - TallGuyShort 7y ago
    Is there a more widely held image of teleportation held by lay people?
  - Varcht 7y ago
    This should be called what it was originally "spooky action at a distance". Calling it teleportation is marketing.
  - cameronbrown 7y ago
    But it's still the closest proxy for the average person.
- BoiledCabbage 7y ago
  > actually somehow instantaneously moving a thing from point A to B, rather than transferring its state. Is it ever explicitly called out that teleportation instantaneously moves matter? I'm not a huge fan, but from what I've seen there is a max range they can teleport. Even taking them orbiting a planet, it usually take about 2-3 seconds or so for the teleportation to go through. Transferring state via EM waves at the speed of light (300km/s) that still gets you between half a million and a million kilometers distance in 2-3 seconds. Seems like plenty range to not need anything instantaneous.
  - krapp 7y ago
    >Is it ever explicitly called out that teleportation instantaneously moves matter? No. Maybe "relatively instantaneously" would be more accurate. Although if we're considering the concept of teleportation as a science fictional plot device in general, it depends, and even within Star Trek, the transporters worked however the plot required. Trek style transporters did still "move" some kind of matter stream, though. In one episode, the stream bounced off some clouds when an away team was beaming off of a planet and accidentally created a duplicate of Riker. > Transferring state via EM waves at the speed of light (300km/s) that still gets you between half a million and a million kilometers distance in 2-3 seconds. Seems like plenty range to not need anything instantaneous. Notwithstanding the other problems involved[0], sending only state still requires that state to be transferred into some existing matter at the other end. [0]https://news.ycombinator.com/item?id=20782106 https://news.ycombinator.com/item?id=20782106
ccccppppp 7y ago
What scientists mean by "teleportation" is more like this: you have one particle A here, one particle B there, and by "teleportation" you make particle B have the same state as particle A. Critical point: for each particle you want to "teleport", you have recipient particle standing by to receive it.
- deleted 7y ago
  [deleted]
- Symmetry 7y ago
  Well, you move the state of A onto B. By the no-cloning theorem A can no longer have the same state once B has it. Hence the term "teleportation."
  - alok99 7y ago
    What happens to the first particle once its state has been transferred? Is it a swap? Or does it go to some other unique state C?
    - Symmetry 7y ago
      It'll have some new unique state.
    - TheRealPomax 7y ago
      The particle ends up either getting destroyed during the measurement (e.g. that free photon or electron will no longer be), or its quantum state will have been collapsed into something that can no longer be used in a quantum algorithm.

Star Trek "does it" by literally converting matter into energy, beaming that energy to a remote point, then converting it back into matter... in place... somehow by teching the tech. That's usually what people mean when they say "teleportation" - actually somehow instantaneously moving a thing from point A to B, rather than transferring its state. I'm not certain whether somehow mass-entangling an entire object with something else that receives its state and becomes a perfect (or near perfect because real life doesn't have "Heisenberg compensators" like Trek, to compensate for the Heisenberging) copy of the original is more or less ridiculous than Star Trek's version.

Koshkin 7y ago
> That's usually what people mean when they say Not everyone thinks in terms of Star Trek...
- TallGuyShort 7y ago
  Is there a more widely held image of teleportation held by lay people?
- Varcht 7y ago
  This should be called what it was originally "spooky action at a distance". Calling it teleportation is marketing.
- cameronbrown 7y ago
  But it's still the closest proxy for the average person.
BoiledCabbage 7y ago
> actually somehow instantaneously moving a thing from point A to B, rather than transferring its state. Is it ever explicitly called out that teleportation instantaneously moves matter? I'm not a huge fan, but from what I've seen there is a max range they can teleport. Even taking them orbiting a planet, it usually take about 2-3 seconds or so for the teleportation to go through. Transferring state via EM waves at the speed of light (300km/s) that still gets you between half a million and a million kilometers distance in 2-3 seconds. Seems like plenty range to not need anything instantaneous.
- krapp 7y ago
  >Is it ever explicitly called out that teleportation instantaneously moves matter? No. Maybe "relatively instantaneously" would be more accurate. Although if we're considering the concept of teleportation as a science fictional plot device in general, it depends, and even within Star Trek, the transporters worked however the plot required. Trek style transporters did still "move" some kind of matter stream, though. In one episode, the stream bounced off some clouds when an away team was beaming off of a planet and accidentally created a duplicate of Riker. > Transferring state via EM waves at the speed of light (300km/s) that still gets you between half a million and a million kilometers distance in 2-3 seconds. Seems like plenty range to not need anything instantaneous. Notwithstanding the other problems involved[0], sending only state still requires that state to be transferred into some existing matter at the other end. [0]https://news.ycombinator.com/item?id=20782106 https://news.ycombinator.com/item?id=20782106

ccccppppp 7y ago

What scientists mean by "teleportation" is more like this: you have one particle A here, one particle B there, and by "teleportation" you make particle B have the same state as particle A. Critical point: for each particle you want to "teleport", you have recipient particle standing by to receive it.

deleted 7y ago
[deleted]
Symmetry 7y ago
Well, you move the state of A onto B. By the no-cloning theorem A can no longer have the same state once B has it. Hence the term "teleportation."
- alok99 7y ago
  What happens to the first particle once its state has been transferred? Is it a swap? Or does it go to some other unique state C?
  - Symmetry 7y ago
    It'll have some new unique state.
  - TheRealPomax 7y ago
    The particle ends up either getting destroyed during the measurement (e.g. that free photon or electron will no longer be), or its quantum state will have been collapsed into something that can no longer be used in a quantum algorithm.