Quantum physics
Quantum Entanglement
A deep correlation between quantum particles such that measuring one instantly fixes the state of the other, however far apart they are — what Einstein called 'spooky action at a distance.' Confirmed in ever-more-stringent experiments, it does not allow faster-than-light signalling and is a foundation of quantum information science.
Highlights
- ›Correlations Einstein called 'spooky action at a distance'
Related physics & astronomy
Across fundamental physics
Knowledge connections
- Associated withQuantum Superposition
- Associated withQuantum Superposition
- Associated withSpecial Relativity
- Associated withQuantum Decoherence
Sources
The primary and reference sources this topic draws on.
- NASANational Aeronautics and Space Administration
Mission data, planetary science, space telescopes, and public-domain imagery.
Most NASA-produced imagery is in the public domain; individual items are checked for usage terms before publication.