Compton wavelength
E436130
concept in quantum mechanics
derived physical constant
physical constant
quantum-mechanical length scale
specific Compton wavelength
The Compton wavelength is a fundamental quantum-mechanical length scale associated with a particle, characterizing the wavelength of a photon whose scattering off that particle produces significant relativistic and quantum effects.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Compton wavelength canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T4393280 — resolving that mention is where its identity was fixed. The disambiguator weighed these candidate entities and picked the highlighted one (or “None”, minting a new entity). This is how homonymy is resolved: the same surface form can point to different entities.
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Compton wavelength Context triple: [Compton effect, hasQuantity, Compton wavelength]
-
A.
Planck–Einstein relation
The Planck–Einstein relation is a fundamental quantum physics formula that links a photon's energy to its frequency, marking a key step in the development of quantum theory.
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B.
Planck length
The Planck length is the fundamental unit of length in quantum gravity, representing the scale at which classical concepts of space and time are expected to break down.
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C.
Klein–Nishina formula
The Klein–Nishina formula is a fundamental result in quantum electrodynamics that gives the differential cross section for Compton scattering of photons by free electrons, incorporating relativistic and quantum effects.
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D.
Planck constant
The Planck constant is a fundamental physical constant that quantifies the relationship between the energy of a photon and the frequency of its associated electromagnetic wave, forming a cornerstone of quantum mechanics.
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E.
Planck mass
The Planck mass is a fundamental physical constant representing the mass scale at which quantum gravitational effects are expected to become significant, derived from combinations of the speed of light, Planck’s constant, and the gravitational constant.
- F. None of above. chosen
- G. Unsure - the case is ambiguous/there is not enough information to decide.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: Compton wavelength Target entity description: The Compton wavelength is a fundamental quantum-mechanical length scale associated with a particle, characterizing the wavelength of a photon whose scattering off that particle produces significant relativistic and quantum effects.
-
A.
Planck–Einstein relation
The Planck–Einstein relation is a fundamental quantum physics formula that links a photon's energy to its frequency, marking a key step in the development of quantum theory.
-
B.
Planck length
The Planck length is the fundamental unit of length in quantum gravity, representing the scale at which classical concepts of space and time are expected to break down.
-
C.
Klein–Nishina formula
The Klein–Nishina formula is a fundamental result in quantum electrodynamics that gives the differential cross section for Compton scattering of photons by free electrons, incorporating relativistic and quantum effects.
-
D.
Planck constant
The Planck constant is a fundamental physical constant that quantifies the relationship between the energy of a photon and the frequency of its associated electromagnetic wave, forming a cornerstone of quantum mechanics.
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E.
Planck mass
The Planck mass is a fundamental physical constant representing the mass scale at which quantum gravitational effects are expected to become significant, derived from combinations of the speed of light, Planck’s constant, and the gravitational constant.
- F. None of above. chosen
Statements (50)
| Predicate | Object |
|---|---|
| instanceOf |
concept in quantum mechanics
ⓘ
derived physical constant ⓘ physical constant ⓘ quantum-mechanical length scale ⓘ specific Compton wavelength ⓘ specific Compton wavelength ⓘ |
| appliesTo |
composite particles
ⓘ
electron ⓘ massive elementary particles ⓘ proton ⓘ |
| approximateValue |
1.321409853×10⁻¹⁵ m
ⓘ
2.426310238×10⁻¹² m ⓘ |
| category |
Physical constants
ⓘ
Quantum mechanics ⓘ
linked to:
quantum mechanics
|
| contrastWith |
Bohr radius
ⓘ
classical electron radius ⓘ |
| definition | wavelength of a photon whose scattering off a particle produces significant relativistic and quantum effects ⓘ |
| dependsOn |
Planck constant h
ⓘ
linked to:
Planck constant
particle rest mass m ⓘ speed of light c ⓘ |
| dimension | length ⓘ |
| field |
particle physics
ⓘ
quantum mechanics ⓘ relativistic quantum mechanics ⓘ |
| hasFormula |
λ_C = h / (m c)
ⓘ
λ̄_C = ħ / (m c) ⓘ |
| hasVariant | reduced Compton wavelength ⓘ |
| historicalContext | introduced in the context of explaining Compton scattering experiments ⓘ |
| implies | localization below this scale leads to particle–antiparticle pair creation ⓘ |
| inverseProportionalTo | particle mass ⓘ |
| namedAfter |
Arthur Holly Compton
ⓘ
linked to:
Arthur H. Compton
|
| relatedConcept |
relativistic wave equations
ⓘ
uncertainty principle ⓘ |
| relatedTo |
Compton scattering
ⓘ
linked to:
Compton effect
Klein–Nishina formula ⓘ Planck constant ⓘ de Broglie wavelength ⓘ pair production ⓘ reduced Compton wavelength ⓘ rest mass energy ⓘ |
| SIUnit | metre ⓘ |
| symbol |
ħ̄ / (m c)
ⓘ
λ_C ⓘ |
| usedFor |
characterizing quantum behavior of particles
ⓘ
distinguishing quantum and classical regimes ⓘ estimating onset of relativistic quantum effects in scattering ⓘ setting natural length scale for a particle ⓘ |
| usedIn |
astrophysics
ⓘ
high-energy physics ⓘ quantum field theory ⓘ |
How these facts were elicited
The pipeline generated the facts above by prompting gpt-5.1 with this entity's name + description and the instruction below.
Instruction
You are a knowledge base construction expert. Given a subject entity and a description of it, return factual statements that you know for the subject as a JSON list of dictionaries(triples), where keys must be "subject", "predicate" and "object". The number of facts may be very high, between 25 to 50 or more, for very popular subjects. For less popular subjects, the number of facts can be very low, like 5 or 10. # Requirements - If you don't know the subject at all, return an empty list. - If the subject is not a named entity, return an empty list. - Include at least one triple where predicate is "instanceOf". - Do not get too wordy. - Separate several objects into multiple triples with one object.
Input
Subject: Compton wavelength Description of subject: The Compton wavelength is a fundamental quantum-mechanical length scale associated with a particle, characterizing the wavelength of a photon whose scattering off that particle produces significant relativistic and quantum effects.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.