346 citations · 508 across the 6 of their papers we have counts for
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quant-ph2017★ 346 cited
Observation of Entangled States of a Fully Controlled 20-Qubit System
Nicolai Friis, Oliver Marty, Christine Maier +8
We generate and characterise entangled states of a register of 20 individually controlled qubits, where each qubit is encoded into the electronic state of a trapped atomic ion. Ent…
quant-ph2017★ 1 cited
Multiparticle entanglement criteria for nonsymmetric collective variances
Oliver Marty, Marcus Cramer, Giuseppe Vitagliano +2
We introduce a general scheme to detect various multiparticle entanglement structures from global non-permutationally invariant observables. In particular, we derive bounds on the…