dorsal/arxiv
View SchemaThe Error Principle
| Authors | D. M. Appleby |
|---|---|
| Categories | |
| ArXiv ID | quant-ph/9803051 |
| URL | https://arxiv.org/abs/quant-ph/9803051 |
| Journal | Int.J.Theor.Phys. 37 (1998) 2557-2572 |
Abstract
The problem of characterising the accuracy of, and disturbance caused by a joint measurement of position and momentum is investigated. In a previous paper the problem was discussed in the context of the unbiased measurements considered by Arthurs and Kelly. It is now shown, that suitably modified versions of these results hold for a much larger class of simultaneous measurements. The approach is a development of that adopted by Braginsky and Khalili in the case of a single measurement of position only. A distinction is made between the errors of retrodiction and the errors of prediction. Two error-error relationships and four error-disturbance relationships are derived, supplementing the Uncertainty Principle usually so-called. In the general case it is necessary to take into account the range of the measuring apparatus. Both the ideal case, of an instrument having infinite range, and the case of a real instrument, for which the range is finite, are discussed.
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"abstract": "The problem of characterising the accuracy of, and disturbance caused by a\njoint measurement of position and momentum is investigated. In a previous paper\nthe problem was discussed in the context of the unbiased measurements\nconsidered by Arthurs and Kelly. It is now shown, that suitably modified\nversions of these results hold for a much larger class of simultaneous\nmeasurements. The approach is a development of that adopted by Braginsky and\nKhalili in the case of a single measurement of position only. A distinction is\nmade between the errors of retrodiction and the errors of prediction. Two\nerror-error relationships and four error-disturbance relationships are derived,\nsupplementing the Uncertainty Principle usually so-called. In the general case\nit is necessary to take into account the range of the measuring apparatus. Both\nthe ideal case, of an instrument having infinite range, and the case of a real\ninstrument, for which the range is finite, are discussed.",
"arxiv_id": "quant-ph/9803051",
"authors": [
"D. M. Appleby"
],
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"quant-ph"
],
"journal_ref": "Int.J.Theor.Phys. 37 (1998) 2557-2572",
"title": "The Error Principle",
"url": "https://arxiv.org/abs/quant-ph/9803051"
},
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