5

Without sacrificing any generality we can define an ebit as a Bell state $\frac{1}{\sqrt{2}}(|00\rangle + |11\rangle)$ shared between two parties $A$ and $B$, and since we're concerned with communicating information each party gets to use any many local operations as they want. Then $$ \text{1 qubit} \geq \text{1 ebit } $$ can be understood as "...


1

Similarities ebit and qubit: An ebit is one unit of bipartite entanglement, the amount of entanglement that is contained in a maximally entangled two-qubit state (Bell state). Requirement: If a state is said to have X ebits of entanglement (quantified by some entanglement measure) it has the same amount of entanglement (in that measure) as X Bell states. If ...


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