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quant-ph2010★ 45 cited
Optimal preparation of graph states
Adan Cabello, Lars Eirik Danielsen, Antonio J. Lopez-Tarrida +1
We show how to prepare any graph state of up to 12 qubits with: (a) the minimum number of controlled-Z gates, and (b) the minimum preparation depth. We assume only one-qubit and co…
quant-ph2009★ 13 cited
Compact set of invariants characterizing graph states of up to eight qubits
Adan Cabello, Antonio J. Lopez-Tarrida, Pilar Moreno +1
The set of entanglement measures proposed by Hein, Eisert, and Briegel for n-qubit graph states [Phys. Rev. A 69, 062311 (2004)] fails to distinguish between inequivalent classes u…