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Created page with "{{Short description|Physical quantity defined at every point in space and time}} ← Back to Matter by scale A '''field''' is a physical quantity that has a value at every point in space and time. In modern physics, fields provide the fundamental description of nature, underlying both particles and interactions. <div style="float:right; border:1px solid #e0d890; background:#fff8cc; padding:6px; margin:0 0 1em 1em; width:32..."
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{{Short description|Physical quantity defined at every point in space and time}}
{{Short description|Physical quantity defined at every point in space and time}}


[[Book:Quantum Collection/Matter (by scale)|← Back to Matter by scale]]
{{Quantum matter backlink|Fields}}


A '''field''' is a physical quantity that has a value at every point in space and time. In modern physics, fields provide the fundamental description of nature, underlying both particles and interactions.
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'''field''' is a Book II topic in the Quantum Collection. A '''field''' is a physical quantity that has a value at every point in space and time. In modern physics, fields provide the fundamental description of nature, underlying both particles and interactions. In quantum field theory, particles are interpreted as excitations of underlying fields rather than independent classical objects. Fields can be quantized, coupled, and transformed by symmetries, producing creation and annihilation processes. This field viewpoint explains scattering, vacuum fluctuations, radiation, particle statistics, and the structure of the Standard Model.
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[[File:Quantum_fields_field_concept_map.svg|thumb|280px|field in the Quantum Collection.]]
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<div style="font-size:90%;">A field assigns values (such as strength or direction) to every point in space.</div>
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Latest revision as of 23:54, 23 May 2026


← Back to Fields Book II

field is a Book II topic in the Quantum Collection. A field is a physical quantity that has a value at every point in space and time. In modern physics, fields provide the fundamental description of nature, underlying both particles and interactions. In quantum field theory, particles are interpreted as excitations of underlying fields rather than independent classical objects. Fields can be quantized, coupled, and transformed by symmetries, producing creation and annihilation processes. This field viewpoint explains scattering, vacuum fluctuations, radiation, particle statistics, and the structure of the Standard Model.

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field in the Quantum Collection.

Description

Fields describe how physical quantities vary across space and time. Classical examples include electric and gravitational fields, while in quantum theory fields are the basis for describing particles.

Properties

  • defined at every point in space and time
  • can carry energy and momentum
  • underlying description of physical systems

See also

Table of contents (217 articles)

Index

Full contents

References


Author: Harold Foppele


Source attribution: Physics:Quantum fields/field

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