dorsal/arxiv
View SchemaDynamics of quantum correlations and linear entropy in a multi-qubit-cavity system
| Authors | Alexandra Olaya-Castro, Neil F. Johnson, Luis Quiroga |
|---|---|
| Categories | |
| ArXiv ID | quant-ph/0311181 |
| URL | https://arxiv.org/abs/quant-ph/0311181 |
| DOI | 10.1088/1464-4266/6/8/016 |
| Journal | J. Opt. B: Quantum Semiclass. Opt. 6 (2004) S730-S735. |
Abstract
We present a theoretical study of the relationship between entanglement and entropy in multi-qubit quantum optical systems. Specifically we investigate quantitative relations between the concurrence and linear entropy for a two-qubit mixed system, implemented as two two-level atoms interacting with a single-mode cavity field. The dynamical evolutions of the entanglement and entropy, are controlled via time-dependent cavity-atom couplings. Our theoretical findings lead us to propose an alternative measure of entanglement, which could be used to develop a much needed correlation measure for more general multi-partite quantum systems.
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"abstract": "We present a theoretical study of the relationship between entanglement and\nentropy in multi-qubit quantum optical systems. Specifically we investigate\nquantitative relations between the concurrence and linear entropy for a\ntwo-qubit mixed system, implemented as two two-level atoms interacting with a\nsingle-mode cavity field. The dynamical evolutions of the entanglement and\nentropy, are controlled via time-dependent cavity-atom couplings. Our\ntheoretical findings lead us to propose an alternative measure of entanglement,\nwhich could be used to develop a much needed correlation measure for more\ngeneral multi-partite quantum systems.",
"arxiv_id": "quant-ph/0311181",
"authors": [
"Alexandra Olaya-Castro",
"Neil F. Johnson",
"Luis Quiroga"
],
"categories": [
"quant-ph"
],
"doi": "10.1088/1464-4266/6/8/016",
"journal_ref": "J. Opt. B: Quantum Semiclass. Opt. 6 (2004) S730-S735.",
"title": "Dynamics of quantum correlations and linear entropy in a multi-qubit-cavity system",
"url": "https://arxiv.org/abs/quant-ph/0311181"
},
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