Planck scale
E230754
The Planck scale is the realm of extremely high energies and tiny distances where quantum effects of gravity are expected to dominate and classical concepts of space-time break down.
All labels observed (2)
| Label | Occurrences |
|---|---|
| Planck scale canonical | 7 |
| Planck-scale cosmology | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T2091484 — 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: Planck scale Context triple: [Planck length, associatedWith, Planck scale]
-
A.
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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B.
Planck units
Planck units are a system of natural units in physics where fundamental constants like the speed of light, gravitational constant, and Planck constant are normalized to 1, providing a scale-free framework for describing physical laws.
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C.
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.
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D.
Planck time
Planck time is the fundamental unit of time in the system of Planck units, representing the shortest meaningful interval of time according to current physical theories, where quantum effects of gravity become significant.
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E.
Planck energy
Planck energy is the fundamental energy scale in physics, derived from universal constants, at which quantum gravitational effects are expected to become significant.
- 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: Planck scale Target entity description: The Planck scale is the realm of extremely high energies and tiny distances where quantum effects of gravity are expected to dominate and classical concepts of space-time break down.
-
A.
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.
-
B.
Planck units
Planck units are a system of natural units in physics where fundamental constants like the speed of light, gravitational constant, and Planck constant are normalized to 1, providing a scale-free framework for describing physical laws.
-
C.
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.
-
D.
Planck time
Planck time is the fundamental unit of time in the system of Planck units, representing the shortest meaningful interval of time according to current physical theories, where quantum effects of gravity become significant.
-
E.
Planck energy
Planck energy is the fundamental energy scale in physics, derived from universal constants, at which quantum gravitational effects are expected to become significant.
- F. None of above. chosen
Statements (52)
| Predicate | Object |
|---|---|
| instanceOf |
concept in theoretical physics
ⓘ
physical scale ⓘ |
| appearsIn |
Planck epoch of the universe
ⓘ
early universe cosmology ⓘ |
| approximatePlanckEnergyValue | 1.956e9 joule ⓘ |
| approximatePlanckLengthValue | 1.616255e-35 meter ⓘ |
| approximatePlanckMassValue | 2.176434e-8 kilogram ⓘ |
| approximatePlanckTemperatureValue | 1.416784e32 kelvin ⓘ |
| approximatePlanckTimeValue | 5.391247e-44 second ⓘ |
| associatedWith |
Planck energy
ⓘ
Planck length ⓘ Planck mass ⓘ Planck temperature ⓘ Planck time ⓘ |
| characteristicEnergyScale | Planck energy ⓘ |
| characteristicLengthScale | Planck length ⓘ |
| characteristicMassScale | Planck mass ⓘ |
| characteristicTemperatureScale | Planck temperature ⓘ |
| characteristicTimeScale | Planck time ⓘ |
| definedBy | fundamental physical constants ⓘ |
| energyRegime | extremely high energy ⓘ |
| field |
cosmology
ⓘ
high‑energy physics ⓘ quantum gravity ⓘ |
| implication |
breakdown of effective field theory description of gravity
ⓘ
modified dispersion relations for particles ⓘ possible discreteness of spacetime ⓘ possible spacetime foam structure ⓘ |
| lengthRegime | extremely short distance ⓘ |
| namedAfter | Max Planck ⓘ |
| openProblem |
absence of complete empirically verified theory of quantum gravity
ⓘ
lack of experimental access with current technology ⓘ |
| orderOfMagnitudeEnergy | 1.22e19 gigaelectronvolt ⓘ |
| orderOfMagnitudeLength | 1.6e-35 meter ⓘ |
| orderOfMagnitudeMass | 2.18e-8 kilogram ⓘ |
| orderOfMagnitudeTemperature | 1.42e32 kelvin ⓘ |
| orderOfMagnitudeTime | 5.4e-44 second ⓘ |
| relatedConcept |
Planck units
ⓘ
grand unification scale ⓘ quantum spacetime ⓘ ultraviolet completion of gravity ⓘ |
| relevance |
classical concept of smooth spacetime expected to fail
ⓘ
classical general relativity expected to break down ⓘ quantum effects of gravity become significant ⓘ |
| studiedIn |
asymptotic safety program
ⓘ
causal dynamical triangulations ⓘ loop quantum gravity ⓘ noncommutative geometry approaches to quantum gravity ⓘ string theory ⓘ |
| usesConstant |
Newtonian gravitational constant G
ⓘ
surface form:
Newtonian gravitational constant
reduced Planck constant ⓘ speed of light in vacuum ⓘ |
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: Planck scale Description of subject: The Planck scale is the realm of extremely high energies and tiny distances where quantum effects of gravity are expected to dominate and classical concepts of space-time break down.
Referenced by (8)
Full triples — surface form annotated when it differs from this entity's canonical label.
this entity surface form:
Planck-scale cosmology