Witnessing Multipartite Entanglement by Detecting Asymmetry
AbstractThe characterization of quantum coherence in the context of quantum information theory and its interplay with quantum correlations is currently subject of intense study. Coherence in a Hamiltonian eigenbasis yields asymmetry, the ability of a quantum system to break a dynamical symmetry generated by the Hamiltonian. We here propose an experimental strategy to witness multipartite entanglement in many-body systems by evaluating the asymmetry with respect to an additive Hamiltonian. We test our scheme by simulating asymmetry and entanglement detection in a three-qubit Greenberger–Horne–Zeilinger (GHZ) diagonal state. View Full-Text
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Girolami, D.; Yadin, B. Witnessing Multipartite Entanglement by Detecting Asymmetry. Entropy 2017, 19, 124.
Girolami D, Yadin B. Witnessing Multipartite Entanglement by Detecting Asymmetry. Entropy. 2017; 19(3):124.Chicago/Turabian Style
Girolami, Davide; Yadin, Benjamin. 2017. "Witnessing Multipartite Entanglement by Detecting Asymmetry." Entropy 19, no. 3: 124.
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