Conceptual remote distance measurement with a double-slit interference

TL;DR

This paper proposes a novel conceptual method for measuring the distance to remote sources in astronomy by utilizing double-slit interference and phase information of light, linking intensity maxima to source distance.

Contribution

It introduces a new conceptual approach that uses double-slit interference and phase data for distance measurement, differing from traditional methods.

Findings

The position of intensity maxima correlates with source distance.

Phase information enhances measurement precision.

The method offers a new perspective for astronomical distance measurement.

Abstract

Distance measurement is crucial to astronomy. Here we suggest a new conceptual method to measure the distance by using a local instrument. By engaging the double-slit interference and by considering the phase information of the light, the position of the intensity maximum is related to the distance of the source. Consequently, the precise measurement of the position can be used to measure the distance of the remote source.