学科建设

学术报告:Quantum Rabi model in circuit QED systems and holonomic quantum computation

报告题目:Quantum Rabi model in circuit QED systems and holonomic quantum computation

报告人:王艺敏 博士陆军工程大学通信工程学院, 南京

报告时间:20171122日(星期三) 下午14:00-15:00

报告地点:致远楼213

报告摘要:

By manipulating the flux qubits with bichromatic time-dependent magnetic fluxes in standard circuit QED systems, we propose an experimentally-accessible method to approach the physics of the anisotropic quantum Rabi model (AQRM) in broad parameter ranges, where the rotating and counter-rotating interactions are governed by two different coupling constants. Assisted by theoretical derivations and numerical calculations, we show that our scheme not only allows for individual control of the parameters in the simulated AQRM but also reproduces the dynamics of the ultrastrong and deep strong coupling regimes. Therefore, our scheme advances the investigation of extremely strong interactions of the AQRM, which are usually experimentally unattainable. Furthermore, associated with the special case of the degenerate AQRM, we demonstrate that our setup may also find applications for protected quantum memory and quantum computation since it can be used to generate the Schr\{o}dinger cat states and the quantum controlled phase gates when scaling up. We also discuss how to implement holonomic quantum computation in the ultrastrong-coupling regime of circuit QED if time is allowed.

Related references:

[1] Yimin Wang, et.al., arXiv:1710.08862.

[2] Yimin Wang, et.al., Phys. Rev. A 94, 012328 (2016)


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