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Certifying quantum memories with coherence
Timo Simnacher, Nikolai Wyderka, Cornelia Spee +2
Quantum memories are an important building block for quantum information processing. Ideally, these memories preserve the quantum properties of the input. We present general criter…
Exponentially many entanglement and correlation constraints for multipartite quantum states
Christopher Eltschka, Felix Huber, Otfried Gühne +1
We present a family of correlations constraints that apply to all multipartite quantum systems of finite dimension. The size of this family is exponential in the number of subsyste…
Changing the circuit-depth complexity of measurement-based quantum computation with hypergraph states
Mariami Gachechiladze, Otfried Gühne, Akimasa Miyake
While the circuit model of quantum computation defines its logical depth or "computational time" in terms of temporal gate sequences, the measurement-based model could allow totall…
Enhanced entanglement criterion via symmetric informationally complete measurements
Jiangwei Shang, Ali Asadian, Huangjun Zhu +1
We show that a special type of measurements, called symmetric informationally complete positive operator-valued measures (SIC POVMs), provide a stronger entanglement detection crit…