dorsal/arxiv
View SchemaRobust transmission of non-Gaussian entanglement over optical fibers
| Authors | Asoka Biswas, Daniel A. Lidar |
|---|---|
| Categories | |
| ArXiv ID | quant-ph/0605157 |
| URL | https://arxiv.org/abs/quant-ph/0605157 |
| DOI | 10.1103/PhysRevA.74.062303 |
| Journal | Phys. Rev. A 74, 062303 (2006) |
Abstract
We show how the entanglement in a wide range of continuous variable non-Gaussian states can be preserved against decoherence for long-range quantum communication through an optical fiber. We apply protection via decoherence-free subspaces and quantum dynamical decoupling to this end. The latter is implemented by inserting phase shifters at regular intervals $\Delta $ inside the fiber, where $\Delta $ is roughly the ratio of the speed of light in the fiber to the bath high-frequency cutoff. Detailed estimates of relevant parameters are provided using the boson-boson model of system-bath interaction for silica fibers, and $\Delta $ is found to be on the order of a millimeter.
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"abstract": "We show how the entanglement in a wide range of continuous variable\nnon-Gaussian states can be preserved against decoherence for long-range quantum\ncommunication through an optical fiber. We apply protection via\ndecoherence-free subspaces and quantum dynamical decoupling to this end. The\nlatter is implemented by inserting phase shifters at regular intervals $\\Delta\n$ inside the fiber, where $\\Delta $ is roughly the ratio of the speed of light\nin the fiber to the bath high-frequency cutoff. Detailed estimates of relevant\nparameters are provided using the boson-boson model of system-bath interaction\nfor silica fibers, and $\\Delta $ is found to be on the order of a millimeter.",
"arxiv_id": "quant-ph/0605157",
"authors": [
"Asoka Biswas",
"Daniel A. Lidar"
],
"categories": [
"quant-ph"
],
"doi": "10.1103/PhysRevA.74.062303",
"journal_ref": "Phys. Rev. A 74, 062303 (2006)",
"title": "Robust transmission of non-Gaussian entanglement over optical fibers",
"url": "https://arxiv.org/abs/quant-ph/0605157"
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