Quantum communication primitive
Quantum teleportation
An unknown quantum state can be transferred using shared entanglement plus classical feed-forward.
Core idea
A Bell measurement consumes entanglement; two classical bits tell the receiver which correction to apply.
Minimal mathematics
Teleportation fidelity depends on entanglement fidelity, Bell measurement quality, and classical latency.
Typical assumptions
- Shared entanglement is available
- Classical communication is authenticated in security settings
- Memory decoherence is simplified
Common failure modes
- Entanglement loss
- Bell measurement failure
- Memory lifetime limits
Related tools
References
- Bennett et al., 1993 teleportation