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4 papers · 2 filters
Taming multiparticle entanglement
Bastian Jungnitsch, Tobias Moroder, Otfried Gühne
We present an approach to characterize genuine multiparticle entanglement using appropriate approximations in the space of quantum states. This leads to a criterion for entanglemen…
Entanglement criteria and full separability of multi-qubit quantum states
Otfried Gühne
We introduce an entanglement criterion to exclude full separability of quantum states. We present numerical evidence that the criterion is necessary and sufficient for the class of…
Enhancement of laser cooling by the use of magnetic gradients
Andreas Albrecht, Alex Retzker, Christof Wunderlich +1
We present a laser cooling scheme for trapped ions and atoms using a combination of laser couplings and a magnetic gradient field. In a Schrieffer-Wolff transformed picture, this s…
Experimental multiparticle entanglement dynamics induced by decoherence
J. T. Barreiro, P. Schindler, O. Gühne +5
Multiparticle entanglement leads to richer correlations than two-particle entanglement and gives rise to striking contradictions with local realism, inequivalent classes of entangl…