dorsal/arxiv
View SchemaImpossibility of partial swapping of Quantum Information
| Authors | Indranil Chakrabarty |
|---|---|
| Categories | |
| ArXiv ID | quant-ph/0612123 |
| URL | https://arxiv.org/abs/quant-ph/0612123 |
| Journal | IJQI,Volume: 5 No: 4 Year: 2007 pp. 605-609 |
Abstract
It is a well known fact that a quantum state $|\psi(\theta,\phi)>$ are represented by a point on the Bloch sphere, characterized by two parameters $\theta$ and $\phi$. Here in this work, we find out another impossible operation in quantum information theory . We name this impossibility as 'Impossibility of partial swapping of quantum information '. By this we mean that if two unknown quantum states are given at the input port, there exists no physical process, consistent with the principles of quantum mechanics, by which we can partially swap either of the two parameters $\theta$ and $\phi$ between these two quantum states. In this work we provided the impossibility proofs for the qubits(i.e the quantum states taken from two dimensional Hilbert space) and this impossible operation can be shown to hold in higher dimension also.
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"abstract": "It is a well known fact that a quantum state $|\\psi(\\theta,\\phi)\u003e$ are\nrepresented by a point on the Bloch sphere, characterized by two parameters\n$\\theta$ and $\\phi$. Here in this work, we find out another impossible\noperation in quantum information theory . We name this impossibility as\n\u0027Impossibility of partial swapping of quantum information \u0027. By this we mean\nthat if two unknown quantum states are given at the input port, there exists no\nphysical process, consistent with the principles of quantum mechanics, by which\nwe can partially swap either of the two parameters $\\theta$ and $\\phi$ between\nthese two quantum states. In this work we provided the impossibility proofs for\nthe qubits(i.e the quantum states taken from two dimensional Hilbert space) and\nthis impossible operation can be shown to hold in higher dimension also.",
"arxiv_id": "quant-ph/0612123",
"authors": [
"Indranil Chakrabarty"
],
"categories": [
"quant-ph"
],
"journal_ref": "IJQI,Volume: 5 No: 4 Year: 2007 pp. 605-609",
"title": "Impossibility of partial swapping of Quantum Information",
"url": "https://arxiv.org/abs/quant-ph/0612123"
},
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