dorsal/arxiv
View SchemaInverting quantum decoherence by classical feedback from the environment
| Authors | Francesco Buscemi, Giulio Chiribella, Giacomo Mauro D'Ariano |
|---|---|
| Categories | |
| ArXiv ID | quant-ph/0504195 |
| URL | https://arxiv.org/abs/quant-ph/0504195 |
| DOI | 10.1103/PhysRevLett.95.090501 |
| Journal | Phys. Rev. Lett. 95, 090501 (2005) |
Abstract
We show that for qubits and qutrits it is always possible to perfectly recover quantum coherence by performing a measurement only on the environment, whereas for dimension d>3 there are situations where recovery is impossible, even with complete access to the environment. For qubits, the minimal amount of classical information to be extracted from the environment equals the entropy exchange.
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"abstract": "We show that for qubits and qutrits it is always possible to perfectly\nrecover quantum coherence by performing a measurement only on the environment,\nwhereas for dimension d\u003e3 there are situations where recovery is impossible,\neven with complete access to the environment. For qubits, the minimal amount of\nclassical information to be extracted from the environment equals the entropy\nexchange.",
"arxiv_id": "quant-ph/0504195",
"authors": [
"Francesco Buscemi",
"Giulio Chiribella",
"Giacomo Mauro D\u0027Ariano"
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"quant-ph"
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"doi": "10.1103/PhysRevLett.95.090501",
"journal_ref": "Phys. Rev. Lett. 95, 090501 (2005)",
"title": "Inverting quantum decoherence by classical feedback from the environment",
"url": "https://arxiv.org/abs/quant-ph/0504195"
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