Questions tagged [quantum-teleportation]
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Explain post-selected teleportation [closed]
I'd be grateful for an explanation of post-selected teleportation (PCTCs). Please provide a step-by-step description of how the process should be performed (Alice and Bob style). Please also explain ...
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Can Fock states be teleported using conventional boson-based platforms in continuous variables? [closed]
Is it possible to teleport Fock states using conventional bosons-based platforms in continuous variables? Usually with bosons-based platforms people perform two-mode squeezing, beam splitter, and EPR (...
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Is it possible to conduct quantum teleportation with a larger than necessary e-dit and preserve entanglement?
Suppose you have an e-bit between qubits A and B. You want to transfer the state of qubit Q to B. You can utilize this e-bit to perform a quantum teleportation to achieve this.
Now instead suppose ...
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Can Quantum Energy Teleportation theoretically be used for interstellar travel?
I see that, recently, Quantum Energy Teleportation has become real physics: https://www.quantamagazine.org/physicists-use-quantum-mechanics-to-pull-energy-out-of-nothing-20230222/
Could this be ...
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Can you project on an orthogonal basis for a multipartite quantum system using only local operations and classical communication?
Say Alice possesses one qubit, and Bob two, and that the joint state is $|\psi_{A, B_1, B_2}\rangle = \alpha|n_1\rangle + \beta |n_2\rangle$, where $|n_1\rangle$ and $|n_2\rangle$ are orthonormal ...
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Two-mode squeezing and EPR
Consider the two-mode squeezing operator $S(\xi)=\exp\left(\xi\hat{a}^{\dagger}\hat{b}^{\dagger}-\xi^*\hat{a}\hat{b} \right)$ with $\xi=r\exp(\text{i}\phi)$, and assume that the initial state of the ...
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When is Quantum State Teleportation useful?
I've been working through the Brilliant Course on Quantum Computing, and I've reached the lesson on Quantum Teleportation. After completing the lesson and reading several questions and answers here:
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Is there an efficient way to execute a quantum channel using its Choi state?
Consider you are given a Choi state
$$
\sigma = (\mathcal{E} \otimes I) | \omega \rangle \langle \omega| \qquad {\rm with } \quad |\omega \rangle = \frac{1}{\sqrt{d}}\sum_{i} |ii \rangle \quad \textrm{...
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What is counterportation for the layman?
The word counterportation has been appearing in my sphere of the internet somewhat frequently and I don’t think I understand what it is.
See here:
https://phys.org/news/2023-03-counterportation-...
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Overview of quantum energy teleportation
I'm looking for a research-level review of the concept of quantum energy teleportation.
I did find http://www.tuhep.phys.tohoku.ac.jp/~hotta/extended-version-qet-review.pdf, but it is more than 10 ...
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Can an electron randomly teleport to Mars? [duplicate]
Layman here, so this is another infuriatingly wrong pop-science ispired question. :)
The way I understand it an electron (and many/all other elementary particles?) is not a little ball orbiting an ...
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How does quantum teleportation work without faster than light communication? [duplicate]
So recently I watched a MinutePhysics explanation of quantum teleportation. Recently I have also been asking questions about quantum entanglement, and the answer I am most often getting is faster than ...
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Entanglement persistence in quantum teleportation
I have a question regarding quantum teleportation.
The scenario is the usual one where Alice as a qubit to transmit, A, and shares an entangled pair of qubits {B1,B2} with Bob.
My question is: once ...
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Does the type of entangled pair make any difference in quantum teleportation?
From what I understand, in order to teleport the state of a qubit from place A to place B I need an entangled pair whose entanglement state will be consumed to perform the teleportation. All the ...
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With the tunnel effect, because matter travels through solid matter, why wouldn't teleportation be possible? [duplicate]
The tunnel effect is when quantum particles sometimes go through a solid object.
If this is possible, then teleportation between, say portal locations throughout the earth, should be possible.
Why or ...
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