论文标题
通过量子计算机上的旋转的平均值来检测纠缠
Detecting entanglement by the mean value of spin on a quantum computer
论文作者
论文摘要
我们实施一个协议，以确定量子计算机上量子和系统其余部分之间的纠缠程度。该方案基于论文中获得的结果[Frydryszak等。 （2017）]。该协议已在IBM Company提供的名为IBMQ-OURENSE的5 Quibit超导量子处理器上进行测试。我们确定了Schrödinger猫的纠缠值和在此设备上准备的Werner状态，并将其与理论上的态度进行比较。此外，提出了用于确定等级2混合状态的纠缠的协议。我们将此方案应用于混合状态，该协议由在IBMQ-ORENSE量子设备上准备的两个铃铛状态组成。
We implement a protocol to determine the degree of entanglement between a qubit and the rest of the system on a quantum computer. The protocol is based on results obtained in paper [Frydryszak et al. (2017)]. This protocol is tested on a 5-qubit superconducting quantum processor called ibmq-ourense provided by the IBM company. We determine the values of entanglement of the Schrödinger cat and the Werner states prepared on this device and compare them with the theoretical ones. In addition, a protocol for determining the entanglement of rank-2 mixed states is proposed. We apply this protocol to the mixed state which consists of two Bell states prepared on the ibmq-ourense quantum device.
