dorsal/arxiv
View SchemaQuantum entanglement dynamics and decoherence wave in spin chains at finite temperatures
| Authors | S. D. Hamieh, M. I. Katsnelson |
|---|---|
| Categories | |
| ArXiv ID | quant-ph/0507266 |
| URL | https://arxiv.org/abs/quant-ph/0507266 |
| DOI | 10.1103/PhysRevA.72.032316 |
Abstract
We analyze the quantum entanglement at the equilibrium in a class of exactly solvable one-dimensional spin models at finite temperatures and identify a region where the quantum fluctuations determine the behavior of the system. We probe the response of the system in this region by studying the spin dynamics after projective measurement of one local spin which leads to the appearance of the ``decoherence wave''. We investigate time-dependent spin correlation functions, the entanglement dynamics, and the fidelity of the quantum information transfer after the measurement.
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"abstract": "We analyze the quantum entanglement at the equilibrium in a class of exactly\nsolvable one-dimensional spin models at finite temperatures and identify a\nregion where the quantum fluctuations determine the behavior of the system. We\nprobe the response of the system in this region by studying the spin dynamics\nafter projective measurement of one local spin which leads to the appearance of\nthe ``decoherence wave\u0027\u0027. We investigate time-dependent spin correlation\nfunctions, the entanglement dynamics, and the fidelity of the quantum\ninformation transfer after the measurement.",
"arxiv_id": "quant-ph/0507266",
"authors": [
"S. D. Hamieh",
"M. I. Katsnelson"
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"quant-ph"
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"doi": "10.1103/PhysRevA.72.032316",
"title": "Quantum entanglement dynamics and decoherence wave in spin chains at finite temperatures",
"url": "https://arxiv.org/abs/quant-ph/0507266"
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