Law2 mins ago
Today's Science Debate Subject........matter Transference.....
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Ok we know that it will never be possible because of the HUP. However that does not stop Sci Fi eg Gene Rodenberry invented the transporter to make it easy to get down on to planets and do the real story of the episode, later in STNG it was explained that a device had been invented called the "Heisenberg compensator" to get over the problem of the HUP and thus Scottie could indeed beam people up/down! Now lets assume that we have a transporter would it basically be mapping every particle and then destoying the subject and then recreating it somewhere else? Thus it's basically fax machine! Or some other mechanism? Discuss!
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Possibly. There are multiple experiments that you could be referring to, and quantum teleportation as an idea has been around for maybe 30-odd years, I think, so I expect you'll have heard of at least one experiment exploring it.
The basic idea is kind of magical to me, but is a typical illustration of how fundamental principles in science can sometimes be bent without being broken. So, as you mention, the Heisenburg uncertainty principle (HUP) places a fundamental constraint on what information can be known about a system, and how certain things - like position and speed - can't be fixed at the same same time. Related to this (although, note, not the same thing, but it's often confused with the HUP) is how measuring a quantum system tends to reduce information about it.
The way around these constraints, which is how quantum teleportation works, is to prepare some sort of clever mixing (the "entanglement" you mention) between the system you *want* to teleport, and a couple of things you don't care about. If you do this in the right way, then you can measure the stuff you don't care about in a way that conveys information about the thing you *do*, and allows you to reconstruct it. That way, you never measured the initial state, but are still able to reconstruct it and transmit it perfectly across large distances.
I haven't explained this very well, I fear, but that's partly because I'm tired and partly because I'm not quite familiar enough with the details to be able to communicate them effectively to others. Have a glance at the wiki article https:/
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