Measurement of a quantum particle position at two distant locations: a model

Authors

  • Jaroslav Dittrich Czech Academy of Sciences, Nuclear Physics Institute, 250 68 Řež, Czech Republic

DOI:

https://doi.org/10.14311/AP.2022.62.0445

Keywords:

position measurement, EPR paradox, quantum measurement

Abstract

A simplified one-dimensional model of measurement of the position of a quantum particle by two distant detectors is considered. Detectors are modelled by quantum particles bounded in potential wells with just two bound states, prepared in the excited states. Their de-excitation due to the short range interaction with the measured particle is the signal for the detection. In the approximations of short time or small coupling between the particle and the measuring apparatuses, the simultaneous detection of the particle by both detectors is suppressed. The results extend to other models with two-level detectors.

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Published

2022-08-31

Issue

Section

Articles