dorsal/arxiv
View SchemaIntrinsic Quantum Computation
| Authors | James P. Crutchfield, Karoline Wiesner |
|---|---|
| Categories | |
| ArXiv ID | quant-ph/0611202 |
| URL | https://arxiv.org/abs/quant-ph/0611202 |
| DOI | 10.1016/j.physleta.2007.07.052 |
Abstract
We introduce ways to measure information storage in quantum systems, using a recently introduced computation-theoretic model that accounts for measurement effects. The first, the quantum excess entropy, quantifies the shared information between a quantum process's past and its future. The second, the quantum transient information, determines the difficulty with which an observer comes to know the internal state of a quantum process through measurements. We contrast these with von Neumann entropy and quantum entropy rate and provide a closed-form expression for the latter for the class of deterministic quantum processes.
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"abstract": "We introduce ways to measure information storage in quantum systems, using a\nrecently introduced computation-theoretic model that accounts for measurement\neffects. The first, the quantum excess entropy, quantifies the shared\ninformation between a quantum process\u0027s past and its future. The second, the\nquantum transient information, determines the difficulty with which an observer\ncomes to know the internal state of a quantum process through measurements. We\ncontrast these with von Neumann entropy and quantum entropy rate and provide a\nclosed-form expression for the latter for the class of deterministic quantum\nprocesses.",
"arxiv_id": "quant-ph/0611202",
"authors": [
"James P. Crutchfield",
"Karoline Wiesner"
],
"categories": [
"quant-ph"
],
"doi": "10.1016/j.physleta.2007.07.052",
"title": "Intrinsic Quantum Computation",
"url": "https://arxiv.org/abs/quant-ph/0611202"
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