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Results in Optics

One- and two-slit experiments using photons and electrons: A proper resolution

Andrew Das Arulsamy

Published Feb 10, 2024• 0 citations
Publisher

Abstract

We construct proper microscopic propositions to consistently capture and explain the interference patterns obtained for electrons and photons, detected individually or otherwise, in one- and two-slit experiments. We propose that for single-photon detections (after time integration), no interference pattern is obtained if one uses non-transparent slit material with slit holes (not diffraction slits). The non-transparent slit material does not permit photons to transmit, reflect internally nor refract. However, the same slit holes can produce the usual interference pattern with electromagnetic waves due to interfering in-phase and out-of-phase light waves. As for the electrons, detected individually or not, partial interference patterns can always be obtained from the two-slit experiment when one of the slits is closed (one at a time), which then can be manually overlapped to produce the complete interference pattern of a double-slit experiment. These new theoretically constructed experimental results for photons and electrons can be readily verified with our current technology using suitable optically non-transparent (for photons) and highly insulating (for electrons) slit materials.

DOI
10.1016/j.rio.2024.100638

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International Journal of Physics•Feb 4, 2024•0 citations
We construct proper microscopic propositions to consistently capture and explain the interference patterns obtained for electrons and photons, detected individually or otherwise, in one- and two-slit experiments. We propose that for single-photon detections (after time integration), no interference pattern is obtained if one uses non-transparent slit material with slit holes (not diffraction slits). The non-transparent slit material does not permit photons to transmit, reflect internally nor refract. However, the same slit holes can produce the usual interference pattern with electromagnetic waves due to interfering in-phase and out-of-phase light waves. As for the electrons, detected individually or not, partial interference patterns can always be obtained from the two-slit experiment when one of the slits is closed (one at a time), which then can be manually overlapped to produce the complete interference pattern of a double-slit experiment. These new theoretically constructed experimental results for photons and electrons can be readily verified with our current technology using suitable optically non-transparent (for photons) and highly insulating (for electrons) slit materials.
We construct proper microscopic propositions to consistently explain the interference patterns obtained for electrons and photons in well-defined one- and two-slit experiments. Our propositions are also made explicit on the basis of quantum mechanics with proper quantitative analysis to support the correctness of the physical mechanisms proposed herein, which obey the wave-particle duality. In particular, our propositions and theoretical analysis demonstrate that for single-photon detection (after time integration), we cannot produce interference pattern if the usual diffraction slits are replaced with slit holes such that the non-transparent slit material does not permit photons to transmit, reflect internally or refract. However, the said non-transparent slit material with slit holes can produce the usual interference pattern with electromagnetic waves.
Abstract We construct proper microscopic propositions to consistently explain the interference patterns obtained for electrons and photons in well-defined one- and two-slit experiments. Our propositions are also made explicit on the basis of quantum mechanics with proper quantitative analysis to support the correctness of the physical mechanisms proposed herein, which obey the wave-particle duality. Apart from that, the microscopic propositions constructed herein can be treated as guidelines in setting up the future experiments such that one can unambiguously support or oppose this strange notion—a quantum particle behaves differently depending upon the number of slit, and where we place the detector such that the particle can sense the detector and the number of slit, before physically interacting with them.
Young’s double slit experiments have been descripted by wave theories, i.e., before and after passing a double slit, the light is waves. Now, we extend the double slit experiments to the comprehensive double slit experiments by utilizing Shield (showing the light is not wave), Metal tube (showing the light is not EM waves), Blocker (showing the light is particles), combination of Shield and Blocker (showing the light is particles), Photon-Chamber (showing the light is particles which produce both non-interference patterns and interference patterns), and Lens (showing the light is particles which produce non-wave and wave patterns). We propose two Postulates: “Postulate on light: light is photons before and after passing through double slit” and “Postulate on lens: light behaves same before and after passing through lens”. Then, we show the novel phenomena of the comprehensive double slit experiments: (1) the light is photons before and after passing through a double slit; (2) photons form both the non-interference patterns and the interference patterns; (3) the non-interference patterns gradually evolve to the interference patterns in the same experiment. We refer to the novel phenomena as “PhotoWave phenomena” that are universal. The comprehensive double slit experiments provide the novel phenomena for developing theoretical model further to study: (1) the nature of the light; (2) the Feynman’s mystery of the double slit; (3) the wave-particle duality; and (4) the wave theories of the light; (5) applications. A complete description should explain all the comprehensive double slit experiments consistently.
Young’s double slit experiments have been descripted by wave theories, i.e., before and after passing a double slit, the light is waves. Now, we extend the double slit experiments to the comprehensive double slit experiments by utilizing Shield (showing the light is not wave), Metal tube (showing the light is not EM wves), Blocker (showing the light is particles), combination of Shield and Blocker (showing the light is particles), Photon-Chamber (showing the light is particles which produce both non-interference patterns and interference patterns), and Lens (showing the light is particles which produce non-wave and wave patterns). We propose two Postulates: “Postulate on light: light is photons before and after passing through double slit” and “Postulate on lens: light behaves same before and after passing through lens”. Then, we show the novel phenomena of the comprehensive double slit experiments: (1) the light is photons before and after passing through a double slit; (2) photons form both the non-interference patterns and the interference patterns; (3) the non-interference patterns gradually evolve to the interference patterns in the same experiment. We refer to the novel phenomena as “PhotoWave phenomena” that are universal. The comprehensive double slit experiments provide the novel phenomena for developing theoretical model further to study: (1) the nature of the light; (2) the Feynman’s mystery of the double slit; (3) the wave-particle duality; and (4) the wave theories of the light; (5) applications. A complete description should explain all the comprehensive double slit experiments consistently.
Young’s double slit experiments have been descripted by wave theories, i.e., before and after passing a double slit, the light is waves. Now, we extend the double slit experiments to the comprehensive double slit experiments by utilizing Shield (showing the light is not wave), Metal tube (showing the light is not EM wves), Blocker (showing the light is particles), combination of Shield and Blocker (showing the light is particles), Photon-Chamber (showing the light is particles which produce both non-interference patterns and interference patterns), and Lens (showing the light is particles which produce non-wave and wave patterns). We propose two Postulates: “Postulate on light: light is photons before and after passing through double slit” and “Postulate on lens: light behaves same before and after passing through lens”. Then, we show the novel phenomena of the comprehensive double slit experiments: (1) the light is photons before and after passing through a double slit; (2) photons form both the non-interference patterns and the interference patterns; (3) the non-interference patterns gradually evolve to the interference patterns in the same experiment. We refer to the novel phenomena as “PhotoWave phenomena” that are universal. The comprehensive double slit experiments provide the novel phenomena for developing theoretical model further to study: (1) the nature of the light; (2) the Feynman’s mystery of the double slit; (3) the wave-particle duality; and (4) the wave theories of the light; (5) applications. A complete description should explain all the comprehensive double slit experiments consistently.
We experimentally show novel phenomena: (1) in the same double slit or cross double slit experiment, within macroscopic distances from diaphragm, the patterns are non-interference and gradually evolve to the interference patterns near/on the screen; (2) in the same single slit or cross single slit experiment, within macroscopic distances from diaphragm, the patterns are non-diffraction and gradually evolve to the diffraction patterns near/on the screen; (3) in the same non-parallel-two-slits experiment, within macroscopic distances from diaphragm, the patterns are non-diffraction and gradually evolve to the diffraction-interference-hybrid patterns; (4) the diffraction-interference-hybrid patterns depend on the angle between two slits. Those novel phenomena: (1) challenge the conventional light wave interpretations of the physical optics, the electromagnetic wave and the quantum probability waves, namely, those interpretations are incomplete; (2) challenging Bohr’s complementarity principle and the wave-particle duality; (3) suggest that it is the photon-photon interaction, instead of the wave-wave interference, that produces the phenomena. To interpret consistently above phenomena is the challenge and demands new theory.