报告题目：Holonomic Quantum Computation on Superconducting
Circuits: Theory and Experiment
报 告 人：薛正远研究员（华南师范大学）
报告时间：2018年7月25日（星期三）下午14：30
报告地点：安徽大学磬苑校区理工楼E楼E400室
报告摘要: Geometric phases are well known to be noise-resilient inquantum evolutions/operations.Holonomic quantum gatesprovide us with a robust way towards universal quantumcomputation, as these quantum gates are actually induced bynonabelian geometric phases. Due to pretty good flexibility andscalability, the superconducting quantum circuit has been oneof the promising platforms for implementing quantum computation. However, the spectrum of transmons is weaklyanharmonic, the complicated interaction needed in thethree-level systems for a nontrivial two-qubit holonomic gate[1] is still experimentally challenging [2]. We have previouslyproposed universal holonomic quantum computation with encoding[3-5]. Here, we elaborate how to efficiently implementuniversal nonadiabatic holonomic quantum gates on simplersuperconducting circuits, with a single transmon serving as aqubit [6]. In our proposal, an arbitrary single-qubit holonomicgate can be realized in a single-loop scenario, by varying theamplitudes and phase difference of two microwave fieldsresonantly coupled to a transmon, which is experimentallydemonstrated [7]. For nontrivial two-qubit holonomic gates,they can be generated with a transmission-line resonator simultaneously coupled to the two target transmons in aneffective resonant way. Moreover, our scenario may readily bescaled up to a 2D lattice configuration, which is able tosupport largely scalable quantum computation, paving the wayfor practically implementing universal nonadiabatic holonomicquantum computation with superconducting circuits.
主办单位：安徽大学物理与材料科学学院
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科学技术处
2018年7月23日