Physics:Quantum electron: Difference between revisions
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{{Short description|Elementary charged lepton in quantum physics}} | |||
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'''electron''' is a Book II topic in the Quantum Collection. The quantum electron is the lightest charged lepton and one of the basic constituents of atoms. It carries negative electric charge, has spin one-half, and is described by quantum states that determine atomic orbitals, bonding, electrical conduction, scattering, and radiation processes. The quantum electron is the lightest charged lepton and one of the basic constituents of atoms. It carries negative electric charge, has spin one-half, and is described by quantum states that determine atomic orbitals, bonding, electrical conduction, scattering, and radiation processes. Electrons are fermions and obey the Pauli exclusion principle. Their spin, charge, magnetic moment, and wavefunction behavior explain the shell structure of atoms and the arrangement of electrons in matter. | |||
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[[File:Quantum electron complex yellow.png|thumb|300px|Complex yellow illustration of the quantum electron, showing charge, spin, orbitals, and wavefunction coupling.]] | |||
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== Quantum properties == | |||
Electrons are fermions and obey the Pauli exclusion principle. Their spin, charge, magnetic moment, and wavefunction behavior explain the shell structure of atoms and the arrangement of electrons in matter. In relativistic theory, the electron is represented by a Dirac field and has an antiparticle, the positron.<ref name="peskin">{{cite book |last1=Peskin |first1=Michael E. |last2=Schroeder |first2=Daniel V. |title=An Introduction to Quantum Field Theory |publisher=Addison-Wesley |year=1995 |isbn=978-0-201-50397-5}}</ref> | |||
== Interactions == | |||
Electrons interact electromagnetically through the photon and weakly through W and Z bosons. In atoms and solids, electromagnetic interactions dominate chemical bonding, spectra, currents, and material properties. In high-energy experiments, electrons are also important final-state particles for identifying weak and electroweak processes. | |||
== Experimental importance == | |||
Electron measurements are among the most precise tests of quantum theory. Spectroscopy, scattering, anomalous magnetic moment studies, and collider measurements use electrons to test quantum electrodynamics, electroweak theory, and possible deviations from Standard Model expectations.<ref name="schwartz">{{cite book |last=Schwartz |first=Matthew D. |title=Quantum Field Theory and the Standard Model |publisher=Cambridge University Press |year=2014 |isbn=978-1-107-03473-0}}</ref> | |||
== Description == | |||
'''electron''' is a matter-scale concept used to organize how quantum theory describes atoms, particles, fields, condensed matter, plasma, or spacetime-related systems. In the Quantum Collection it is placed by scale so the reader can move from materials and molecules down to subatomic degrees of freedom. | |||
== Quantum context == | |||
At this scale, the relevant behavior is controlled by quantized states, interactions, conservation laws, and the way excitations or particles are observed. The concept is normally linked to measurable properties such as energy, momentum, charge, spin, spectra, scattering rates, or collective modes. | |||
== Role in the collection == | |||
This page provides a compact reference point for related pages in Book II. It should be read together with nearby matter-scale topics and the corresponding foundations in [[Physics:Quantum mechanics|quantum mechanics]].<ref name="matter-wiki">{{cite web |url=https://en.wikipedia.org/wiki/Quantum_mechanics |title=Quantum mechanics |website=Wikipedia |access-date=2026-05-20}}</ref> | |||
=See also= | =See also= | ||
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{{Author|Harold Foppele}} | {{Author|Harold Foppele}} | ||
{{Sourceattribution| | {{Sourceattribution|Physics:Quantum electron|1}} | ||
Latest revision as of 22:05, 20 May 2026
electron is a Book II topic in the Quantum Collection. The quantum electron is the lightest charged lepton and one of the basic constituents of atoms. It carries negative electric charge, has spin one-half, and is described by quantum states that determine atomic orbitals, bonding, electrical conduction, scattering, and radiation processes. The quantum electron is the lightest charged lepton and one of the basic constituents of atoms. It carries negative electric charge, has spin one-half, and is described by quantum states that determine atomic orbitals, bonding, electrical conduction, scattering, and radiation processes. Electrons are fermions and obey the Pauli exclusion principle. Their spin, charge, magnetic moment, and wavefunction behavior explain the shell structure of atoms and the arrangement of electrons in matter.
Quantum properties
Electrons are fermions and obey the Pauli exclusion principle. Their spin, charge, magnetic moment, and wavefunction behavior explain the shell structure of atoms and the arrangement of electrons in matter. In relativistic theory, the electron is represented by a Dirac field and has an antiparticle, the positron.[1]
Interactions
Electrons interact electromagnetically through the photon and weakly through W and Z bosons. In atoms and solids, electromagnetic interactions dominate chemical bonding, spectra, currents, and material properties. In high-energy experiments, electrons are also important final-state particles for identifying weak and electroweak processes.
Experimental importance
Electron measurements are among the most precise tests of quantum theory. Spectroscopy, scattering, anomalous magnetic moment studies, and collider measurements use electrons to test quantum electrodynamics, electroweak theory, and possible deviations from Standard Model expectations.[2]
Description
electron is a matter-scale concept used to organize how quantum theory describes atoms, particles, fields, condensed matter, plasma, or spacetime-related systems. In the Quantum Collection it is placed by scale so the reader can move from materials and molecules down to subatomic degrees of freedom.
Quantum context
At this scale, the relevant behavior is controlled by quantized states, interactions, conservation laws, and the way excitations or particles are observed. The concept is normally linked to measurable properties such as energy, momentum, charge, spin, spectra, scattering rates, or collective modes.
Role in the collection
This page provides a compact reference point for related pages in Book II. It should be read together with nearby matter-scale topics and the corresponding foundations in quantum mechanics.[3]
See also
Table of contents (84 articles)
Index
Full contents
References
- ↑ Peskin, Michael E.; Schroeder, Daniel V. (1995). An Introduction to Quantum Field Theory. Addison-Wesley. ISBN 978-0-201-50397-5.
- ↑ Schwartz, Matthew D. (2014). Quantum Field Theory and the Standard Model. Cambridge University Press. ISBN 978-1-107-03473-0.
- ↑ "Quantum mechanics". https://en.wikipedia.org/wiki/Quantum_mechanics.
Source attribution: Physics:Quantum electron