Is Quantum Teleportation Possible Through Electron-Positron Annihilation?

In summary, the conversation discusses the concept of teleportation using quantum channels and the possibility of using gamma rays to transport matter or energy without physically traversing the space between two points. However, the idea is dismissed due to complications related to vacuums and magnetic fields, and the fact that the resulting pair would not be in the same state as the input pair. It is also noted that gamma rays cannot be directed like light can, and would need to be split into smaller energies in order to undergo total internal reflection in an optical fiber.
  • #1
ryanuser
74
0
Hi
Would it be possible to force an electron and a positron to meat each other and annihilate, then the gamma beam created is to be directed some distance away and passed next to an atom for pair production to occur. ( I dismissed complications related to the vacuums and the magnetic fields).
So according to this system we have teleportated an electron positron pair?
 
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  • #2
Quantum teleportation turns a classical channel into a quantum channel by consuming previously shared bell pairs. It let's you move qubits/spins/whatever via indirect means. See this video.

Your situation doesn't count as quantum teleportation because the resulting pair is not caused to be in the same state as the input pair (e.g. matching spins). If you managed to work around this and somehow encode those states into the photon, then the photon is a quantum channel (instead of a classical channel) and the process again would not match what people are talking about when they say "quantum teleportation".
 
  • #3
Ok, would it then be categorised as just teleportation since its definition is: " the transfer of matter or energy from one point to another without traversing the physical space between them."?
And would it even be possible? I said the gamma rays produced must be 'directed'; since gamma rays don't refract or reflect how would it be directed? Does it have to split to smaller energies (lower frequencies) so it can undergo total internal reflection in an optical fibre?
Thanks
 

1. What is quantum teleportation?

Quantum teleportation is a process in which quantum information (such as the exact state of an atom or photon) is transmitted from one location to another, with the help of classical communication and previously shared quantum entanglement between the sending and receiving location.

2. How does quantum teleportation work?

Quantum teleportation works by first creating a pair of entangled quantum particles, one at the sending location and one at the receiving location. Then, the quantum information of the particle to be teleported is measured and the result is sent to the receiving location through classical communication. The receiving location then uses this information to manipulate the entangled particle to recreate the quantum state of the original particle.

3. Is quantum teleportation instantaneous?

No, quantum teleportation is not instantaneous. While the quantum information is transmitted faster than the speed of light, the classical communication needed for the process to work still takes time. Therefore, the speed of quantum teleportation is limited by the speed of the classical communication channel.

4. What are the potential applications of quantum teleportation?

Quantum teleportation has potential applications in quantum computing, quantum cryptography, and long-distance communication. It could also potentially be used to transfer quantum information between quantum memory devices and enable secure communication networks.

5. Is quantum teleportation possible with macroscopic objects?

Currently, quantum teleportation has only been successfully demonstrated with individual particles, such as photons and atoms. Theoretically, it is possible to extend this to larger objects, but it would require precise control and manipulation of a large number of particles, which is currently beyond our technological capabilities.

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