Wave-Particle Duality of Light: A Current Perspective

H. J. Carmichael

Christian Cormier-Delanoue

Dipankar Home

Wei Fan

The wave-particle duality of quantum mechanics has always been an unsolved problem in physics. This article attempts to use one of the properties to explain the other, so as to eliminate the confusion of quantum mechanics probability waves. Specifically, this article finds that the discreteness of energy is the inherent property of all waves, so this article explains the particle nature of light from the perspective of light wave, thereby eliminating the confusion of light’s wave-particle duality; in addition, this article found that microscopic matter particles are only suitable for discussing the number of scattered particles or energy flow density, not their position and momentum, when they are forced to discuss their position and momentum, it will inevitably lead to confusion about probability waves, when only discussing the number of scattered particles or energy flow density, its volatility can be explained from the perspective of particle nature, thereby eliminating the confusion of microscopic matter particle probability waves. When the attribute of light as a wave is established, the light needs to overcome the Hamiltonian of the medium in different constraint systems (gravitational fields) during the propagation process, which will produce a universal redshift phenomenon, this can provide a new understanding of cosmic redshift; when the property of light as a wave is established, it means that the speed of light is a constant speed relative to the medium, which can provide a new understanding of the principle of constant speed of light.

Xinjun Wang

Hasmukh K. Tank

It is well known, that in some experiments, light exhibits ‘wave’ property; like interference and diffraction; whereas in other experiments, like photoelectric effect, it shows ‘particle’ nature. So, the physicists currently think in terms of ‘wave-particle-duality’ of light, their mutual exclusiveness, and complementarily. Here, in this paper, this ‘wave-particle-duality’ is explained; that at the frequencies of light, very narrow-band filtering, and generation of purely monochromatic light, of one Hz bandwidth, are not technically possible; so there is always some bandwidth and ‘line-width’, due to which the waves form wave-packets, localized in space, as ‘particles’. Then this familiarity with waves is applied to understand the observations of ‘cosmological red shift’.