I'm investigating whether it's experimentally feasible to measure the one-way speed of light using quantum entanglement collapse as a remote timing marker, avoiding classical clock synchronization.
This is not about faster-than-light communication, but rather about using entanglement correlations to define a start time (t₁) between two distant locations, while respecting the no-communication theorem.
Proposed experiment outline:
- Point A measures one of a pair of entangled photons.
- The collapse at Point B is used to define t₁.
- A classical photon is sent from A to B simultaneously.
- The arrival time t₂ is recorded at B.
- The one-way velocity is calculated as v = L / (t₂ − t₁).
In addition:
- Pair A1–A2 is used for cross-check synchronization.
- Pair B1–B2 acts as a control to detect external errors.
The setup uses three independent entangled photon pairs, does not transmit classical signals between A and B, and fully respects current quantum mechanics.
❓ Question:
Would such a setup be considered valid and feasible in experimental physics?
Are there theoretical constraints that would prevent such an entanglement-based scheme from being used to bypass clock synchronization?
