Lengthwise correlation imaging method based on cold atom matter wave

Abstract

The invention relates to a lengthwise correlation imaging method based on a cold atom matter wave. The lengthwise correlation imaging method based on the cold atom matter wave includes the following steps that the cold atom matter wave is generated; the cold atom matter wave generates a signal matter wave and a reference matter wave through a matter wave beam splitter; lengthwise multiple-point measuring is carried out on the reference matter wave; the signal matter wave is cast to a lengthwise potential field to be measured; barrel measuring is carried on the signal matter wave which is acted by the lengthwise potential field and correlated with a multiple-point measurement result of the reference matter wave to obtain the distribution image of the lengthwise potential field. The cold atom matter wave with the mass is adopted as a wave source of the correlated image instead of an optical wave. The lengthwise correlation imaging method based on the cold atom matter wave has the capacity of distinguishing potential fields such as the gravitational field, the optical field and the electromagnetic field and can detect the basic physical information such as the mass, the optical field and the electromagnetic field in the environment.

Description

technical field [0001] The invention relates to a material wave correlation imaging method. technical background [0002] Correlative imaging (ghost imaging) is a novel imaging mechanism. It utilizes the partial coherence or quantum entanglement characteristics of the light source to realize the acquisition of the diffraction image of the object with nanometer resolution in the optical path without the object. Correlative imaging is widely used in distributed image processing, distributed sensing, and communication. With the rise of cold atom optics in recent years, various correlation phenomena have been realized in the field of matter waves (see academic paper Schellekens, M.eta / .Hanbury Brown Twiss Effect for Ultracold Quantum Gases SC / ENCE2005310, 648-651). Cold atomic matter waves have rich internal state structures, which are convenient for experimental manipulation. The wavelength of matter waves of cold atoms is shorter than that of light waves, with a smaller dif...

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Problems solved by technology

This leads to the inability of the correlation imaging method based on light waves to measure the distribution of the longitudinal potential field, which limits the application and promotion of the correlation imaging method.

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