Statements (17)
| Predicate | Object |
|---|---|
| gptkbp:instanceOf |
gptkb:physical_phenomenon
|
| gptkbp:appliesTo |
gptkb:Bose–Einstein_condensates
gptkb:superfluid_helium |
| gptkbp:criticalVelocityFormula |
v_c = min(ε(p)/p)
|
| gptkbp:describes |
critical velocity for superfluid flow
|
| gptkbp:field |
condensed matter physics
superfluidity |
| gptkbp:formedBy |
gptkb:Lev_Landau
|
| gptkbp:namedAfter |
gptkb:Lev_Landau
|
| gptkbp:relatedTo |
gptkb:roton
phonon elementary excitations |
| gptkbp:state |
superfluidity breaks down when flow velocity exceeds critical value
|
| gptkbp:yearProposed |
1941
|
| gptkbp:bfsParent |
gptkb:Theory_of_Superfluidity
|
| gptkbp:bfsLayer |
6
|
| https://www.w3.org/2000/01/rdf-schema#label |
Landau criterion
|