dorsal/arxiv
View SchemaHigh efficiency transfer of quantum information and multi-particle entanglement generation in translation invariant quantum chains
| Authors | Martin B Plenio, Fernando L Semiao |
|---|---|
| Categories | |
| ArXiv ID | quant-ph/0407034 |
| URL | https://arxiv.org/abs/quant-ph/0407034 |
| DOI | 10.1088/1367-2630/7/1/073 |
| Journal | New J. Phys. 7, 73 (2005) |
Abstract
We demonstrate that a translation invariant chain of interacting quantum systems can be used for high efficiency transfer of quantum entanglement and the generation of multi-particle entanglement over large distances and between arbitrary sites without the requirement of precise spatial or temporal control. The scheme is largely insensitive to disorder and random coupling strengths in the chain. We discuss harmonic oscillator systems both in the case of arbitrary Gaussian states and in situations when at most one excitation is in the system. The latter case which we prove to be equivalent to an xy-spin chain may be used to generate genuine multi particle entanglement. Such a 'quantum data bus' may prove useful in future solid state architectures for quantum information processing.
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"abstract": "We demonstrate that a translation invariant chain of interacting quantum\nsystems can be used for high efficiency transfer of quantum entanglement and\nthe generation of multi-particle entanglement over large distances and between\narbitrary sites without the requirement of precise spatial or temporal control.\nThe scheme is largely insensitive to disorder and random coupling strengths in\nthe chain. We discuss harmonic oscillator systems both in the case of arbitrary\nGaussian states and in situations when at most one excitation is in the system.\nThe latter case which we prove to be equivalent to an xy-spin chain may be used\nto generate genuine multi particle entanglement. Such a \u0027quantum data bus\u0027 may\nprove useful in future solid state architectures for quantum information\nprocessing.",
"arxiv_id": "quant-ph/0407034",
"authors": [
"Martin B Plenio",
"Fernando L Semiao"
],
"categories": [
"quant-ph",
"cond-mat.stat-mech"
],
"doi": "10.1088/1367-2630/7/1/073",
"journal_ref": "New J. Phys. 7, 73 (2005)",
"title": "High efficiency transfer of quantum information and multi-particle entanglement generation in translation invariant quantum chains",
"url": "https://arxiv.org/abs/quant-ph/0407034"
},
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