Elementary Particles and Symmetries: Documents on Modern Physics

1976 ◽  
Vol 27 (6) ◽  
pp. 266-266
Author(s):  
H Osborn
Keyword(s):  
Elementary Particles ◽  
Modern Physics

Atoms of Matter and Energy

2020 ◽  
pp. 120-134
Author(s):  
Demetris Nicolaides
Keyword(s):  
Empty Space ◽  
Building Blocks ◽  
Elementary Particles ◽  
Material Objects ◽  
Scientific Achievement ◽  
Atomic Theory ◽  
Space And Time ◽  
Modern Physics ◽  
Actual Meaning ◽  
Controversial Concept

Perhaps the greatest scientific achievement of antiquity, possibly of all time, was the realization of the atomic nature of matter. “There are but atoms and the void,” Democritus proposed. And he understood the great diversity of material objects as complex aggregations of uncuttable atoms, the building blocks of matter, moving in the void, the empty space between them. Leucippus invented the atomic theory, and Democritus, a true polymath and a prolific philosopher, developed it extensively. Uncuttable (the actual meaning of atom in Greek) are also the modern elementary particles of matter, the quarks and leptons, and although void is a controversial concept still, a kind of void is required to explain nature. Leucippus’s and Democritus’s notion of indivisible (atomic), discrete particles without substructure has endured and, according to modern physics, is still one of the most remarkable properties of nature. Could space and time have an atomic nature, too?

Elementary Particles of Modern Physics

Science ◽  
1960 ◽  
Vol 132 (3422) ◽  
pp. 269-274 ◽  
Author(s):  
R. E. Marshak
Keyword(s):  
Elementary Particles ◽  
Modern Physics

scholarly journals The place of elementary particle research in the development of modern physics

1964 ◽  
Vol 278 (1374) ◽  
pp. 290-302 ◽  
Keyword(s):  
Elementary Particle ◽  
Atomic Physics ◽  
Nuclear Physics ◽  
High Energy Physics ◽  
High Energy ◽  
Elementary Particles ◽  
Atomic Nuclei ◽  
Protons And Neutrons ◽  
Modern Physics ◽  
Energy Physics

The search for elementary particles is as old as science itself. It is always the most advanced part of physics which strives for an understanding of the fundamental constituents of matter. As physics progressed, the search for elementary particles moved on from chemistry to atomic physics, and then to nuclear physics. Not much more than a decade ago it separated from nuclear physics and became a new field, dealing no longer with the structure of atomic nuclei but with the structure of the constituents of nuclei, the protons and neutrons, and also with the structure of electrons and similar particles. This field is often referred to as high-energy physics because in it beams of particles of extremely high energy are needed for most of the relevant experiments. The purpose of this article is to present a bird’s-eye view of the new aspects which elementary particle research has recently created and to show how they fit into the framework of physics of this century.

scholarly journals Atoms, quanta, and qubits: Atomism in quantum mechanics and information

2020 ◽  
Author(s):  
Vasil Penchev
Keyword(s):  
Quantum Mechanics ◽  
Quantum Information ◽  
Elementary Particles ◽  
Planck Constant ◽  
Modern Physics ◽  
Conceptual Shift

The original conception of atomism suggests “atoms”, which cannot be divided more into composing parts. However, the name “atom” in physics is reserved for entities, which can be divided into electrons, protons, neutrons and other “elementary particles”, some of which are in turn compounded by other, “more elementary” ones. Instead of this, quantum mechanics is grounded on the actually indivisible quanta of action limited by the fundamental Planck constant. It resolves the problem of how both discrete and continuous (even smooth) to be described uniformly and invariantly in thus. Quantum mechanics can be interpreted in terms of quantum information. Qubit is the indivisible unit (“atom”) of quantum information. The imagery of atomism in modern physics moves from atoms of matter (or energy) via “atoms” (quanta) of action to “atoms” (qubits) of quantum information. This is a conceptual shift in the cognition of reality to terms of information, choice, and time

scholarly journals Fundamentality and Conditionality of Existence

2019 ◽  
Vol 11 (2) ◽  
pp. 1-9
Author(s):  
Sahana Rajan
Keyword(s):  
Object Oriented ◽  
Elementary Particles ◽  
Central Theme ◽  
Modern Physics

In metaphysics, fundamentality is a central theme involving debates on the nature of existents, as wholes. These debates are largely object-oriented in their standpoint and engage with composites or wholes through the mereological notion of compositionality. The ontological significance of the parts overrides that of wholes since the existence and identity of the latter are dependent on that of the former. Broadly, the candidates for fundamental entities are considered to be elementary particles of modern physics (since they appear to play the role of ultimate parts to all phenomena). The paper intends to show the inadequacy of the object-oriented notion of conditionality by pointing out that the parts and wholes possess varying conditions of existence. By alleging that only the parts are ontologically significant is to conflate such conditions and neglect the spectrum of conditions which exist in our world. A proposal for a revised notion of compositionality in terms of structural relatedness is also put forward.

scholarly journals Atoms, quanta, and qubits: Atomism in quantum mechanics and information

2020 ◽  
Author(s):  
Vasil Dinev Penchev
Keyword(s):  
Quantum Mechanics ◽  
Quantum Information ◽  
Elementary Particles ◽  
Planck Constant ◽  
Modern Physics ◽  
Conceptual Shift

The original conception of atomism suggests “atoms”, which cannot be divided more into composing parts. However, the name “atom” in physics is reserved for entities, which can be divided into electrons, protons, neutrons and other “elementary particles”, some of which are in turn compounded by other, “more elementary” ones. Instead of this, quantum mechanics is grounded on the actually indivisible quanta of action limited by the fundamental Planck constant. It resolves the problem of how both discrete and continuous (even smooth) to be described uniformly and invariantly in thus. Quantum mechanics can be interpreted in terms of quantum information. Qubit is the indivisible unit (“atom”) of quantum information. The imagery of atomism in modern physics moves from atoms of matter (or energy) via “atoms” (quanta) of action to “atoms” (qubits) of quantum information. This is a conceptual shift in the cognition of reality to terms of information, choice, and time.

scholarly journals Atoms, quanta, and qubits: Atomism in quantum mechanics and information

2020 ◽  
Author(s):  
Vasil Penchev
Keyword(s):  
Quantum Mechanics ◽  
Quantum Information ◽  
Elementary Particles ◽  
Planck Constant ◽  
Modern Physics ◽  
Conceptual Shift

The original conception of atomism suggests “atoms”, which cannot be divided more into composing parts. However, the name “atom” in physics is reserved for entities, which can be divided into electrons, protons, neutrons and other “elementary particles”, some of which are in turn compounded by other, “more elementary” ones. Instead of this, quantum mechanics is grounded on the actually indivisible quanta of action limited by the fundamental Planck constant. It resolves the problem of how both discrete and continuous (even smooth) to be described uniformly and invariantly in thus. Quantum mechanics can be interpreted in terms of quantum information. Qubit is the indivisible unit (“atom”) of quantum information. The imagery of atomism in modern physics moves from atoms of matter (or energy) via “atoms” (quanta) of action to “atoms” (qubits) of quantum information. This is a conceptual shift in the cognition of reality to terms of information, choice, and time

Elementary Particles and the Laws of Physics

1987 ◽  
Author(s):  
Richard P. Feynman ◽  
Steven Weinberg
Keyword(s):  
Elementary Particles

The Event Universe

2015 ◽  
Author(s):  
Leemon B. McHenry
Keyword(s):  
Electromagnetic Field ◽  
Quantum Mechanics ◽  
Common Sense ◽  
Physical Theory ◽  
Alfred North Whitehead ◽  
Bertrand Russell ◽  
Theory Of Relativity ◽  
The World ◽  
Modern Physics ◽  
Linguistic Methods

What kinds of things are events? Battles, explosions, accidents, crashes, rock concerts would be typical examples of events and these would be reinforced in the way we speak about the world. Events or actions function linguistically as verbs and adverbs. Philosophers following Aristotle have claimed that events are dependent on substances such as physical objects and persons. But with the advances of modern physics, some philosophers and physicists have argued that events are the basic entities of reality and what we perceive as physical bodies are just very long events spread out in space-time. In other words, everything turns out to be events. This view, no doubt, radically revises our ordinary common sense view of reality, but as our event theorists argue common sense is out of touch with advancing science. In The Event Universe: The Revisionary Metaphysics of Alfred North Whitehead, Leemon McHenry argues that Whitehead's metaphysics provides a more adequate basis for achieving a unification of physical theory than a traditional substance metaphysics. He investigates the influence of Maxwell's electromagnetic field, Einstein's theory of relativity and quantum mechanics on the development of the ontology of events and compares Whitehead’s theory to his contemporaries, C. D. Broad and Bertrand Russell, as well as another key proponent of this theory, W. V. Quine. In this manner, McHenry defends the naturalized and speculative approach to metaphysics as opposed to analytical and linguistic methods that arose in the 20th century.

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