A Short Tour of the Laws of Entanglement (And How to Evade Them)
summary
Constructs a family of embezzling states with Schmidt coefficients ~1/√j (normalization ~log n) that let two separated parties convert a product target into an entangled target by local unitaries with fidelity at least 1 − (log m)/log n, so achieving error ε requires n ~ (1/ε)×(target size) (polynomial blowup). Multiparty embezzlement exists but costs doubly exponential resources. Tools: explicit Schmidt permutations, correlated‑sampling robustness, and uses in quantum games and the quantum reverse Shannon theorem; the schemes work only approximately and require large dimensions.
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chapters (17)
- 0:00Introduction
- 0:52Structure
- 1:48The Great Laws Part 1
- 2:40What is embezzlement
- 3:06Perfect embezzlement
- 10:26How to embezzle
- 13:53Permutation matrices
- 16:33Further developments
- 20:53Entanglement in the Hilbert Space
- 25:53Twoplayer games
- 27:44Quantum games
- 33:30Quantum reversion theorem
- 35:29The first application of embezzlement
- 37:43Monogamy
- 39:45Entanglement Measures
- 43:26Entanglement Definition
- 45:23Conclusion
