论文标题

通过SU(2)转换实施常规和非常规的非绝热几何量子门

Implementing conventional and unconventional nonadiabatic geometric quantum gates via SU(2) transformations

论文作者

Cheng, Jian-jian, Zhang, Lin

论文摘要

我们提出了一种简单但通用的协议,以代表时间依赖时间的哈密顿人成型为几何量子计算。通过利用SU(2)变换,可以通过更自由设计控制参数实现栅极操作的加速目标。作为一种应用,该协议可以通过控制钻石氮 - 胶合中心系统中的微波脉冲来实现传统和非常规的非绝热几何量子门。我们表明,具有更经济的进化时间可以实现成型的哈密顿量可以实现几何门,并进一步降低了环境噪声对门忠诚度的影响。

We propose a simple but versatile protocol to engineer time-dependent Hamiltonians inversely for geometric quantum computation. By utilizing SU(2) transformation, a speedup goal on gate operation is achieved with more freedom to design the control parameters. As an application, this protocol enables the conventional and unconventional nonadiabatic geometric quantum gates with desired evolution paths by controlling the microwave pulses in the diamond nitrogen-vacancy center system. We show that the inversely designed Hamiltonian can fulfill the geometric gate with more economical evolution time and further reduces the influence of the environment noise on gate fidelity.

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