Uncertainty relation and probability: Numerical illustration

Details Uncertainty relation and probability: Numerical illustration Uncertainty relation and probability: Numerical illustration

2010-12-08

arxiv.org/abs/1012.1752v1

Prog. Theor. Phys. 125 (2011), 205-224

Physics

Quantum Physics

27 pages, 4 figures. To appear in Progress of Theoretical Physics (kyoto)

Scientific paper

10.1143/PTP.125.205

The uncertainty relation and the probability interpretation of quantum mechanics are intrinsically connected, as is evidenced by the evaluation of standard deviations. It is thus natural to ask if one can associate a very small uncertainty product of suitably sampled events with a very small probability. We have shown elsewhere that some examples of the evasion of the uncertainty relation noted in the past are in fact understood in this way. We here numerically illustrate that a very small uncertainty product is realized if one performs a suitable sampling of measured data which occur with a very small probability. It is also shown that our analysis is consistent with the Landau-Pollak type uncertainty relation. It is suggested that the present analysis may help reconcile the contradicting views about the "standard quantum limit" in the detection of gravitational waves.

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