Aharonov–Casher effect
E435850
The Aharonov–Casher effect is a quantum mechanical phenomenon in which a neutral particle with a magnetic moment acquires a measurable phase shift when moving around a line of electric charge, illustrating the significance of electromagnetic potentials.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Aharonov–Casher effect canonical | 1 |
Statements (50)
| Predicate | Object |
|---|---|
| instanceOf |
physical phenomenon
ⓘ
quantum mechanical effect ⓘ topological phase effect ⓘ |
| appliesTo |
atoms with magnetic dipole moments
ⓘ
molecules with magnetic dipole moments ⓘ neutrons ⓘ spin-1/2 particles with magnetic moment ⓘ |
| dependsOn |
Planck constant
NERFINISHED
ⓘ
electric charge density of the line of charge ⓘ magnetic dipole moment of the particle ⓘ path of the particle around the line of charge ⓘ speed of light ⓘ |
| describes |
geometric phase acquired by a neutral particle
ⓘ
interaction between magnetic dipole and electric field ⓘ phase shift of a neutral particle with magnetic moment ⓘ |
| field |
electromagnetism
ⓘ
quantum field theory ⓘ quantum mechanics ⓘ quantum physics ⓘ |
| hasExperimentalVerification |
atomic interferometry experiments
ⓘ
neutron interferometry experiments ⓘ solid-state systems ⓘ |
| hasMathematicalDescription |
path integral formalism
ⓘ
phase factor in wavefunction ⓘ |
| hasTheoreticalBasis |
Dirac equation
NERFINISHED
ⓘ
relativistic quantum mechanics ⓘ |
| illustrates |
gauge invariance in quantum theory
ⓘ
nonlocal features of quantum mechanics ⓘ physical significance of electromagnetic potentials ⓘ |
| involves |
electric field
ⓘ
line of electric charge ⓘ magnetic dipole moment ⓘ neutral particle ⓘ quantum phase factor ⓘ topological phase ⓘ |
| isAnalogousTo | Aharonov–Bohm effect NERFINISHED ⓘ |
| isDualTo | Aharonov–Bohm effect NERFINISHED ⓘ |
| isIndependentOf | local classical forces on the particle ⓘ |
| isPredictedBy |
Aharon Casher
NERFINISHED
ⓘ
Yakir Aharonov NERFINISHED ⓘ |
| occursWhen | neutral magnetic dipole encircles a line of electric charge ⓘ |
| phaseType |
geometric phase
ⓘ
topological phase ⓘ |
| relatedConcept |
Berry phase
ⓘ
geometric phase in quantum mechanics ⓘ spin–orbit interaction ⓘ topological quantum phases ⓘ |
| resultsIn |
measurable interference pattern shift
ⓘ
observable phase difference between quantum paths ⓘ |
| yearProposed | 1984 ⓘ |
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.