dorsal/arxiv
View SchemaOptimal Quantum Clocks
| Authors | V. Buzek, R. Derka, S. Massar |
|---|---|
| Categories | |
| ArXiv ID | quant-ph/9808042 |
| URL | https://arxiv.org/abs/quant-ph/9808042 |
| DOI | 10.1103/PhysRevLett.82.2207 |
| Journal | Phys.Rev.Lett. 82 (1999) 2207-2210 |
Abstract
A quantum clock must satisfy two basic constraints. The first is a bound on the time resolution of the clock given by the difference between its maximum and minimum energy eigenvalues. The second follows from Holevo's bound on how much classical information can be encoded in a quantum system. We show that asymptotically, as the dimension of the Hilbert space of the clock tends to infinity, both constraints can be satisfied simultaneously. The experimental realization of such an optimal quantum clock using trapped ions is discussed.
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"abstract": "A quantum clock must satisfy two basic constraints. The first is a bound on\nthe time resolution of the clock given by the difference between its maximum\nand minimum energy eigenvalues. The second follows from Holevo\u0027s bound on how\nmuch classical information can be encoded in a quantum system. We show that\nasymptotically, as the dimension of the Hilbert space of the clock tends to\ninfinity, both constraints can be satisfied simultaneously. The experimental\nrealization of such an optimal quantum clock using trapped ions is discussed.",
"arxiv_id": "quant-ph/9808042",
"authors": [
"V. Buzek",
"R. Derka",
"S. Massar"
],
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"quant-ph"
],
"doi": "10.1103/PhysRevLett.82.2207",
"journal_ref": "Phys.Rev.Lett. 82 (1999) 2207-2210",
"title": "Optimal Quantum Clocks",
"url": "https://arxiv.org/abs/quant-ph/9808042"
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