Topologically protected entanglement switching around exceptional points
Zan Tang,
Tian Chen,
Xing Tang
et al.
Abstract:The robust operation of quantum entanglement states is crucial for applications in quantum information, computing, and communications1–3. However, it has always been a great challenge to complete such a task because of decoherence and disorder. Here, we propose theoretically and demonstrate experimentally an effective scheme to realize robust operation of quantum entanglement states by designing quadruple degeneracy exceptional points. By encircling the exceptional points on two overlapping Riemann energy surf… Show more
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