Knowledge of past and future in quantum mechanics

Abstract:

The box is accurately weighed before and after the shutter has opened in order to determine the total energy of the particles which have left, and the observer at 0 is provided with means for observing the arrival of par-ticles, a clock for measuring their time of arrival, and some apparatus for measuring momentum. Furthermore the distances SO and SROare accurately measured beforehand,—the distance SO being sufficient so that the rate of the clock at 0 is not disturbed by the gravitational effects involved in weighing the box, and the distance SRO being very long in order to permit an accurate reweighing of the box before the arrival of the second particle. Let us now suppose that the observer at 0 measures the momentum of the first particle as it approaches along the path SO, and then measures its time of arrival. Of course the latter observation, made for example with the help of gamma-ray illumination, will …

Año de publicación:

1931

Keywords:

Fuente:

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