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Quantum Physics

Michael G. Raymer

Published Sep 14, 2017• 0 citations
Publisher

Abstract

What is quantum physics? Quantum physics is the study of matter and energy—the basic constituents of the physical world—in the ‘quantum realm.’ The quantum realm encompasses those aspects of Nature that cannot be explained using classical physics. By ‘classical physics’ we physicists mean the...
DOI
10.1093/wentk/9780190250720.003.0001

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Humans perceive the world at a macroscopic level where the laws of nature can be explained using classical physics. However, at the sub-atomic level, systems exhibit phenomena that are not explainable using classical physics alone. To model the behaviour of these tiny systems, the pioneers developed a framework known as quantum mechanics. Since the main focus of this book is photons, we must understand basics of quantum mechanics before studying the behaviour of photonic systems. This mechanics has a special mathematical formalism which is the subject of this chapter.
The view of the interdependent genesis of the two realms of dualistic manifestation; the realm of ‘physicality’, which is the objective aspect of the dualistic manifestation from the deeper, unitary, implicate (to use a term for levels of non-duality used by physicist David Bohm) dimension of Mindnature, and the subjective realm of individuated ‘mentality’ solves a crucial puzzle that has bothered many physicists and mathematicians. Eugene Wigner, for instance, referred to what he considered to be the ‘unreasonable effectiveness’ of mathematics in describing and explaining the physical world of ‘nature’; he called mathematics a ‘miracle’ and ‘a wonderful gift that we neither understand nor deserve.’ However, if both the realm of mentality and physicality emerge from a deeper level of universal Mindnature then it is surely not such a great mystery that mathematics, itself a product of mind, produces the conceptual patterns generated and followed by the ‘physical’ functioning of reality.
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Quantum mechanics (or simply quantum physics) is the branch of physics that applies to particles and systems of particles, such as atoms and molecules. In that realm the laws of classical mechanics and classical electromagnetism break down, and only quantum mechanics provides the concepts and computational methods that explain observed phenomena. Quantum mechanics uses specially developed tools, such as wave functions, that contain all of the relevant information about particles and systems. is approach is needed to understand the true nature of electromagnetic radiation and how that radiation interacts with matter. e mathematics used in quantum mechanics is highly specialized and often complex. In this chapter we’ll address some of the key questions that require quantum mechanics without presenting the full mathematical formalism. e important questions we’ll address all deal with observable physical phenomena. We’ll discuss how quantum mechanics is used to answer these questions but will omit the advanced mathematical details.