dorsal/arxiv
View SchemaUsing unitary operations to preserve quantum states in the presence of relaxation
| Authors | Benjamin Recht, Yael Maguire, Seth Lloyd, I. L. Chuang, N. A. Gershenfeld |
|---|---|
| Categories | |
| ArXiv ID | quant-ph/0210078 |
| URL | https://arxiv.org/abs/quant-ph/0210078 |
Abstract
When a quantum system interacts with an external environment, it undergoes the loss of quantum correlation (decoherence) and the loss of energy (relaxation) and eventually all of the quantum information becomes classical. Here we show a general principle to use unitary operations to establish and preserve particular non-equilibrium states in arbitrary relaxing quantum systems. We elucidate these concepts with examples of state preservation in one-spin and two-spin entangled systems.
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"abstract": "When a quantum system interacts with an external environment, it undergoes\nthe loss of quantum correlation (decoherence) and the loss of energy\n(relaxation) and eventually all of the quantum information becomes classical.\nHere we show a general principle to use unitary operations to establish and\npreserve particular non-equilibrium states in arbitrary relaxing quantum\nsystems. We elucidate these concepts with examples of state preservation in\none-spin and two-spin entangled systems.",
"arxiv_id": "quant-ph/0210078",
"authors": [
"Benjamin Recht",
"Yael Maguire",
"Seth Lloyd",
"I. L. Chuang",
"N. A. Gershenfeld"
],
"categories": [
"quant-ph"
],
"title": "Using unitary operations to preserve quantum states in the presence of relaxation",
"url": "https://arxiv.org/abs/quant-ph/0210078"
},
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