Quantum Mechanics and its Fundamental Issues

G. Jordan Maclay

This Special Issue “Symmetries in Quantum Mechanics” describes research using two of the most fundamental probes we have in nature [...]

Y. Nambu

Stefano Forte

We address the issue of the interpretation of quantum mechanics by asking why the issue never arises in the description of high-energy interactions. We argue that several tenets of quantum mechanics, specifically the collapse of the wave function, follow directly once one accepts the essential randomness of fundamental interaction events. We then show that scale separation of fundamental interactions ensures that decoherent measurement can be unambiguously separated from the random quantum events. Finally, we argue that the fundamental symmetries of space and time guarantee the existence of a unique preferred basis. We argue that this set of ideas might lead to an interpretation of quantum mechanics, or rather, show in which sense an "interpretation" is (or is not) necessary.

A. V. Lankin, Genri E. Norman

Abstract An analytical review of publications on the quantum mechanics of living matter is presented. This topic has appeared only in recent years. At the same time, its analysis leads to a discussion of fundamental problems that arose with quantum mechanics a hundred years ago: the nature of ‘the process of measuring and the duality of the relationship between classical and quantum mechanics. In considering these issues, the ideas of von Neumann, formulated in 1932, are followed and significantly developed taking into account new physical concepts and experimental data. The work of our senses: vision, smell, etc., is compared to ‘the process of measuring. The possible role of quantum processes in the nervous system is pointed out, photosynthesis and magnetoreception are discussed, the idea of the wave function collapse as a specific quality of life is developed, and unresolved fundamental issues are highlighted.

Julian L. Davis