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CRC Press eBooks

Reality and Objects

Bernard d’Espagnat

Published Mar 5, 2018• 0 citations
Publisher

Abstract

This chapter provides a moderately precise shape to the idea that physical reality is independent of physicists, an idea deeply rooted in the minds of scientists and laymen alike. This idea is particularized through the introduction of supplementary assumptions that are inspired by common sense. The versions of realism thus obtained are discussed in the light of quantum physics. They are found to be unacceptable. In order for realism to be something more than an arbitrary metaphysical construction, physicists should have some grip on reality through their experience. In conventional quantum mechanics, the hypothesis implies that at any time in its history a microscopic particle always possesses a complete set of compatible observables endowed with definite values. Macro-objectivism, in spite of physicists' reference to experience, is distinctly a realistic philosophy, since it assumes that physical objects would exist and have specific properties even if no human beings existed.

DOI
10.1201/9780429501449-24

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This paper re-opens the debate on the failure of quantum mechanics to provide an understandable view of micro-reality. A critique is offered of the commonly accepted ‘Copenhagen Interpretation’ of a theory that is only a mathematical approach to the level of reality characterized by atoms and electrons. This critique is based on the oldest approach to thinking about nature for over 2500 years, known as Natural Philosophy. Quantum mechanics (QM) was developed over the first quarter of the 20th Century, when scientists were enthralled by a new philosophy known as Positivism, whose foundations were based on the assumption that material objects exist only when measured by humans – this central assumption conflates epistemology (knowledge) with ontology (existence). The present critique rejects this human-centered view of reality by assuming material reality has existed long before (and will persist long after) human beings (“Realism”). The defensive view that the micro-world is too different to understand using regular thinking (and only a mathematical approach is possible) is rejected totally. At least 12 earlier QM interpretations are critically analyzed, indicating the broad interest in “what does QM mean?” The standard theory of quantum mechanics is thus constructed on only how the micro-world appears to macro measurements - as such, it cannot offer any view of how the foundations of the world are acting when humans are not observing it - this has generated almost 100 years of confusion and contradiction at the very heart of physics. Significantly, we live in a world that is not being measured by scientists but is interacting with itself and with us. QM has failed to provide explanations: only recipes (meaningless equations), not insights. Physics has returned to the pre-Newtonian world of Ptolemaic phenomenology: only verifiable numbers without real understanding. The focus needs to be on an explicit linkage between the micro-world, when left to itself, and our mental models of this sphere of material reality, via the mechanism of measurement. This limits the role of measurement to confirming our mental models of reality but never confusing these with a direct image of ‘the thing in itself’. This implies a deep divide between reality and appearances, as Kant suggested. This paper includes an original analysis of several major assumptions that have been implicit in Classical Mechanics (CM) that were acceptable in the macroscopic domain of reality, demonstrated by its proven successes. Unfortunately, only a few of these assumptions were challenged by the developers of QM. We now show that these other assumptions are still generating confusions in the interpretation of QM and blocking further progress in the understanding of the microscopic domain. Several of these flawed assumptions were introduced by Newton to support the use of continuum mathematics as a model of nature. This paper proposes that it is the attempt to preserve continuum mathematics (especially calculus), which drives much of the mystery and confusion behind all attempts at understanding quantum mechanics. The introduction of discrete mathematics is proposed to help analyze the discrete interactions between the quintessential quantum objects: the electrons and their novel properties. A related paper demonstrates that it is possible to create a point-particle theory of electrons that explains all their peculiar (and ‘paradoxical’) behavior using only physical hypotheses and discrete mathematics without introducing the continuum mathematical ideas of fields or waves. Another (related) paper proves that all the known results for the hydrogen atom can also be exactly calculated from this new perspective with the discrete mathematics. * Surrey, B.C. Canada (604) 542-2299 spsi99@telus.net Version 2.015 08-05-2017 Begun 23-06-2008 {pp. 82, 70.2 Kw; 800 KB}

•May 1, 2017•0 citations
This chapter provides a moderately precise shape to the idea that physical reality is independent of physicists, an idea deeply rooted in the minds of scientists and laymen alike. This idea is particularized through the introduction of supplementary assumptions that are inspired by common sense. The versions of realism thus obtained are discussed in the light of quantum physics. They are found to be unacceptable. In order for realism to be something more than an arbitrary metaphysical construction, physicists should have some grip on reality through their experience. In conventional quantum mechanics, the hypothesis implies that at any time in its history a microscopic particle always possesses a complete set of compatible observables endowed with definite values. Macro-objectivism, in spite of physicists' reference to experience, is distinctly a realistic philosophy, since it assumes that physical objects would exist and have specific properties even if no human beings existed.
Scientific realism holds that the objects of scientific knowledge exist independently of the minds or activities of scientists and those scientific theories are true of that objective world. This is antithetical to the posits of quantum physics, a body of knowledge taken as the seal of the sciences because of its incredible feat, which emphasizes observer created reality, and to that end subjective and probabilistic understanding of realities. Given this background, we contend that, if the thesis of scientific realism were to be taken as sacrosanct, nature would have remained somewhat unfavourable since nobody would have dared to ‘create’ reality other than those originally imposed by nature. And to the quantum physicist, the resort to probabilistic conception of reality is an obvious indication that nature in its dynamism is uncanny and still has billions of tricks for mankind.
During the past two or three centuries western philosophy and science have confirmed each other in their ontological attitude towards external reality. The particular opinion that physical objects have an existence completely independent of observation was established as the necessary basis for all scientific investigation. The discovery in quantum physics that the phenomena ultimately constituting the stability of the material world cannot be separated from the instruments of observation was necessarily felt disastrous to the scientific world-picture, and many philosophers and scientists, including celebrated physicists, are still trying by all means to save ontology in quantum physics. The motive power behind this activity is the belief that the objectivity of science can be maintained only if the elementary particles of matter can be objectified in the usual way. The present chapter deals with the fundamental conditions in quantum physics which entail a complete breakdown of the conceptual frame of classical mechanics
This chapter describes the theory as a variety of realism. The particular version of realism that is called there "macro-objectivism" seems hardly compatible with quantum mechanics. It is a kind of realism that is at the antipodes of micro- or macro-objectivism. In a sense, its first promoter was E. Schrodinger, but it was systematized and carried to its logical extreme 10 years ago by H. Everett. This theory received support from Wheeler and, more recently, from De Witt. The relativity of state theory obviously has extremely attractive aspects, along with some other features that are very hard to accept. One of its weaknesses is, in a way, a consequence of its success: as shown above, it is a theory that cannot be disproved by any specific experiment, since people cannot observe the split. For this reason it can rightly be called a "metaphysical theory," provided that the prefix "meta-" is given roughly the same sense as in meta-mathematics.
Most interpretations of quantum theory fail to provide a fundamental, complete, self-consistent account of nature describing physical reality itself, as opposed to merely yielding predictions about results of experiments and observations. A paradigm providing a self-consistent foundation for quantum theory and a description of the reality it refers to, generalized to a worldview, is a Quantum Paradigm, where ‘paradigm' is defined as structure of experiential reality. We assert that the fundamental obstruction in the quest for a quantum paradigm is the assumption of objectivity. The subject-object distinction, drawn within experience, has within the natural sciences degenerated into a dichotomy-an absolute split into separate realms-with scientists adopting the classical paradigm where the object pole of experience ("objective reality") can be studied independently from the subject pole ("the experiencer"), with a presupposition that this procedure yields a fundamental description of nature. In fact, the subjective is often eliminated altogether as a fundamental category, and reduced to an epiphenomenon of objective processes. We claim this objectivity assumption precludes a full comprehension and a paradox-free formulation of quantum theory. By challenging this presupposition, i.e. leaving the question open, a coherent understanding of quantum nature falls naturally into place, providing appropriate foundation for quantum theory and an associated world-view. The resulting Quantum Paradigm is "realist" in the sense that it provides a description of what is actually happening: namely the arena of all happening is Mind or Consciousness-from which mind and matter, subject and object, individual and collective, and time and space co-dependently arise. The subject matter of quantum theory then becomes the fundamental mind-function of distinction ("measurement"), resulting in information and its statistical correlations. The message of quantum mechanics is surprising: the basic components of objects-the particles, electrons, quarks, etc.-cannot be thought of as ‘self-existent'. The reality that they, and hence all objects, are components of is ‘empirical reality', of experience."The universe begins to look more like a great thought than a great machine."-James Jeans Anomalous phenomena such as ESP and psychokinesis, collective consciousness, and synchronicity that are considered impossible in the context of the classical paradigm, fit naturally in, and can in turn provide evidence for the Quantum Paradigm. Spirituality and science are shown to be complementary approaches referring to the same reality, Mind, while each discipline retains its integrity. The Quantum Paradigm can be intellectually comprehended, as well as embodied: one can live in quantum reality. A good metaphor for this is "life as a dream": with no "real" objects as distinguished from experienced objects. Experience is "empty" of self-nature in the Buddhist sense, with everything interconnected and co-dependently arising. Experiencing the world by "embodying the Quantum Paradigm" is transformative, healing, and an antidote to alienation resulting from embodying the classical paradigm. Embodying the Quantum Paradigm and living in the Oneness of all creation can help humanity-increasingly lost in the materialism and individualism reinforced by our embodiment of the classical paradigm-and restore intimate connection and harmony with Spirit, Nature and fellow humans; we need such a transformation to survive and thrive in our technological society.
Quantum mechanics has seemed to defy all attempts to construe it realistically, but antirealism, like the many‐worlds hypothesis, is even more difficult to accept. In order to give a realist construal of quantum mechanics, we need first to distinguish the objective and rational aspect of reality from the paradigmatic thing‐like aspects of having determinate physical properties: quantum‐mechanical entities may be real in the former sense though not in the latter. Anti‐realist arguments are based on the difficulty of giving an account of quantum‐mechanical collapse and the apparent superluminal velocities involved. Objections to superluminal velocities on the score of the special theory of relativity are found not to be conclusive, and the price—there being some preferred frame of reference—to be acceptable. A sketch of a probabilistic account of quantum‐mechanical collapse is offered, which makes the difference between the macro‐ and the micro‐world a matter of degree rather than kind. If that, or some other, account proved acceptable, we could be quantum‐mechanical realists, though quantum‐mechanical reality would be very different from that of material objects in hardware shops.
This paper re-opens the debate on the failure of quantum mechanics to provide an understandable view of micro-reality. A critique is offered of the commonly accepted ‘Copenhagen Interpretation’ of a theory that is only a mathematical approach to the level of reality characterized by atoms and electrons. This critique is based on the oldest approach to thinking about nature for over 2500 years, known as Natural Philosophy. Quantum mechanics (QM) was developed over the first quarter of the 20th Century, when scientists were enthralled by a new philosophy known as Positivism, whose foundations were based on the assumption that material objects exist only when measured by humans – this central assumption conflates epistemology (knowledge) with ontology (existence). The present critique rejects this human-centered view of reality by assuming material reality has existed long before (and will persist long after) human beings (“Realism”). The defensive view that the micro-world is too different to understand using regular thinking (and only a mathematical approach is possible) is rejected totally. At least 12 earlier QM interpretations are critically analyzed, indicating the broad interest in “what does QM mean?” The standard theory of quantum mechanics is thus constructed on only how the micro-world appears to macro measurements - as such, it cannot offer any view of how the foundations of the world are acting when humans are not observing it - this has generated almost 100 years of confusion and contradiction at the very heart of physics. Significantly, we live in a world that is not being measured by scientists but is interacting with itself and with us. QM has failed to provide explanations: only recipes (meaningless equations), not insights. Physics has returned to the pre-Newtonian world of Ptolemaic phenomenology: only verifiable numbers without real understanding. The focus needs to be on an explicit linkage between the micro-world, when left to itself, and our mental models of this sphere of material reality, via the mechanism of measurement. This limits the role of measurement to confirming our mental models of reality but never confusing these with a direct image of ‘the thing in itself’. This implies a deep divide between reality and appearances, as Kant suggested. This paper includes an original analysis of several major assumptions that have been implicit in Classical Mechanics (CM) that were acceptable in the macroscopic domain of reality, demonstrated by its proven successes. Unfortunately, only a few of these assumptions were challenged by the developers of QM. We now show that these other assumptions are still generating confusions in the interpretation of QM and blocking further progress in the understanding of the microscopic domain. Several of these flawed assumptions were introduced by Newton to support the use of continuum mathematics as a model of nature. This paper proposes that it is the attempt to preserve continuum mathematics (especially calculus), which drives much of the mystery and confusion behind all attempts at understanding quantum mechanics. The introduction of discrete mathematics is proposed to help analyze the discrete interactions between the quintessential quantum objects: the electrons and their novel properties. A related paper demonstrates that it is possible to create a point-particle theory of electrons that explains all their peculiar (and ‘paradoxical’) behavior using only physical hypotheses and discrete mathematics without introducing the continuum mathematical ideas of fields or waves. Another (related) paper proves that all the known results for the hydrogen atom can also be exactly calculated from this new perspective with the discrete mathematics. * Surrey, B.C. Canada (604) 542-2299 spsi99@telus.net Version 2.015 08-05-2017 Begun 23-06-2008 {pp. 82, 70.2 Kw; 800 KB}