Physics:Quantum Higgs field: Difference between revisions
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Latest revision as of 22:06, 20 May 2026
Higgs field is a Book II topic in the Quantum Collection. The quantum Higgs field is a scalar field in the Standard Model whose nonzero vacuum value is associated with electroweak symmetry breaking. Its excitation is the Higgs boson. The field is central because it allows the W and Z bosons and many fermions to acquire mass while preserving the gauge structure of the electroweak theory. The quantum Higgs field is a scalar field in the Standard Model whose nonzero vacuum value is associated with electroweak symmetry breaking. Its excitation is the Higgs boson. The field is central because it allows the W and Z bosons and many fermions to acquire mass while preserving the gauge structure of the electroweak theory.
Scalar-field character
The Higgs field is a scalar field, meaning its simplest observable value does not carry a spatial direction like a vector field. In the electroweak theory it is arranged as a complex field with components that interact with gauge and matter fields.[1]
Vacuum value
The Higgs field has a nonzero value even in the lowest-energy state. This vacuum value changes the form of the electroweak fields and produces massive weak bosons while leaving the photon massless.[2]
Higgs boson
Small excitations around the vacuum value appear as Higgs bosons. Measurements of Higgs production and decay test whether this field behaves as predicted or whether additional scalar fields or interactions are present.[3]
Description
Higgs field 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.[4]
See also
Table of contents (84 articles)
Index
Full contents
References
- ↑ Schwartz, Matthew D. (2014). Quantum Field Theory and the Standard Model. Cambridge University Press. ISBN 978-1-107-03473-0.
- ↑ Peskin, Michael E.; Schroeder, Daniel V. (1995). An Introduction to Quantum Field Theory. Addison-Wesley. ISBN 978-0-201-50397-5.
- ↑ "Review of Particle Physics". Physical Review D 110 (3): 030001. 2024. DOI 10.1103/PhysRevD.110.030001.
- ↑ "Quantum mechanics". https://en.wikipedia.org/wiki/Quantum_mechanics.
Source attribution: Physics:Quantum Higgs field