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Institute of Physics eBooks

Experiments related to the quantum nature of light

Muhammad Waseem, Faizan-e-Ilahi, Muhammad Sabieh Anwar

Published Jul 1, 2020• 0 citations
Publisher
DOI
10.1088/978-0-7503-3063-3ch4

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The origin and elaboration of our fundamental theories like quantum theory, the theory of relativity and the quantum field theories can be traced to the study of light and its properties. While developing these theories, several notions on the behaviour of light have been hypothesized as well as asserted, sometimes without any direct or compelling empirical evidence. In the context of quantum physics, there is a widespread belief that experiments on quantum correlations establish nonlocality as an essential aspect of nature. Another unshakable belief without direct empirical support is the absolute constancy of the speed of light relative to moving observers. In this paper, I argue that no experiment on quantum correlations of spatially separated photons necessitates the concept of nonlocality, and that there is no direct empirical proof of nonlocality. I also comment on the need to modify established notions on quantum light, in the context of a clear conflict between cosmology and the zero point energy of quantum electrodynamics. Then I describe the first experiments on the measurement of the true one-way speed light relative to a reference platform that is in inertial motion. The results are at variance with the belief that the speed of light is independent of the velocity of the observer.
The nature of light is studied by comparison between the real and digital worlds. Combining the theoretical results obtained from a relative quantum mechanical equation which is suited for a particle with zero rest mass, spin quantum number 1/2 with experiments analysis results, we discuss the possibility that a photon could have structure. A possible photon model with internal structure is proposed and discussed. A photon could consist of a pair particles named particle x+ and antiparticle x-. x+ and x- both have zero rest masses, and spin quantum number 1/2. x+ and x- oscillate in opposite directions but spin in the same direction, which means there is an internal oscillation. The frequency of light is the frequency of the oscillation. The model can be used to explain not only all of the experiment phenomena, but also the wave particle dualism of light. It can provide clear pictures of both polarization and coherency of light. It can also explain that there are two spin states of 1 and -1. The possible experiments that could be used to prove the model are addressed too.