Planck density
E650603
Planck density is the extremely high theoretical mass density scale in physics derived from fundamental constants, representing the density at which quantum gravitational effects become dominant.
Statements (46)
| Predicate | Object |
|---|---|
| instanceOf |
physical constant
ⓘ
theoretical construct in physics ⓘ |
| approximateValue | 5.15500×10^96 kg·m^−3 ⓘ |
| approximateValueOrderOfMagnitude | 10^96 kg·m^−3 ⓘ |
| associatedEpoch | Planck era of the universe NERFINISHED ⓘ |
| belongsToQuantityKind | mass density ⓘ |
| conceptualRole |
density scale where quantum gravitational effects become significant
ⓘ
natural density unit in Planck unit system ⓘ |
| definedBy | Max Planck units system NERFINISHED ⓘ |
| field |
cosmology
ⓘ
quantum gravity ⓘ theoretical physics ⓘ |
| hasDimension | mass per volume ⓘ |
| hasDimensionalFormula | M L^−3 ⓘ |
| hasSIUnit | kilogram per cubic metre ⓘ |
| hasSIUnitSymbol | kg·m^−3 ⓘ |
| isDefinedAs |
Planck mass divided by Planck length cubed
ⓘ
m_P / l_P^3 ⓘ |
| isDerivedFromConstant |
Boltzmann constant
NERFINISHED
ⓘ
Newtonian gravitational constant NERFINISHED ⓘ Planck constant NERFINISHED ⓘ reduced Planck constant NERFINISHED ⓘ speed of light in vacuum ⓘ |
| isDirectlyObservable | false ⓘ |
| isExtremelyHighComparedTo |
nuclear density
ⓘ
water density ⓘ |
| isPartOf | Planck scale NERFINISHED ⓘ |
| isRelatedTo |
Planck energy
NERFINISHED
ⓘ
Planck energy density ⓘ Planck length NERFINISHED ⓘ Planck mass NERFINISHED ⓘ Planck temperature NERFINISHED ⓘ Planck time NERFINISHED ⓘ Planck units NERFINISHED ⓘ |
| isRelevantFor |
black hole physics
ⓘ
singularity studies ⓘ |
| isSometimesExpressedIn | Planck mass per Planck volume ⓘ |
| isTheoretical | true ⓘ |
| isUpperScaleFor | classical general relativity applicability ⓘ |
| isUsedAs | reference scale for quantum gravity ⓘ |
| namedAfter | Max Planck NERFINISHED ⓘ |
| symbol |
rho_P
ⓘ
ρ_P ⓘ |
| usedIn |
Planck epoch descriptions
ⓘ
early universe cosmology ⓘ quantum gravity models ⓘ |
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.