论文标题
任意双量量子系统的非线性转向标准
Nonlinear steering criteria for arbitrary two-qubit quantum systems
论文作者
论文摘要
通过采用Pauli测量值，我们提出了一些适用于任意两量量子系统的非线性转向标准，并针对对称量子状态进行了优化。这些标准提供了足够的条件来见证转向，可以为一些知名州恢复以前的优雅结果。与现有的线性转向标准和熵标准相比，我们的人可以在不选择测量设置或相关权重的情况下对更可检验的状态进行认证，这也可以用于验证纠缠，因为所有可进入的量子状态均为纠缠。
By employing Pauli measurements, we present some nonlinear steering criteria applicable for arbitrary two-qubit quantum systems and optimized ones for symmetric quantum states. These criteria provide sufficient conditions to witness steering, which can recover the previous elegant results for some well-known states. Compared with the existing linear steering criterion and entropic criterion, ours can certify more steerable states without selecting measurement settings or correlation weights, which can also be used to verify entanglement as all steerable quantum states are entangled.
