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>"Two coins can be maximally entangled, and so can three, but not four" How can 3 coins be maximally entangled? Is there also a quantum solution to entanglemen
by aphroz 5y ago
>"Two coins can be maximally entangled, and so can three, but not four"
How can 3 coins be maximally entangled? Is there also a quantum solution to entanglement monogamy?
- Strilanc 5y agoThe multi-party maximal-entanglement definition used in the paper is "no matter how you cut it into two pieces, the two pieces are maximally entangled". Monogamy isn't an obstacle because the definition is always using two pieces. A 3-qubit state with this property is the |000> + |111> state. But |0000> + |1111> doesn't work as a 4-qubit state because when you cut it into evenly sized pieces you should be able to distill 2 bell pairs instead of 1.