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arXiv 1801.04789quant-ph
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不破缺宇称对称性的单光子诱导双量子比特激发

Single-photon-induced two qubits excitation without breaking parity symmetry

Qian Bin, Xin-You Lü, Shang-Wu Bin, Gui-Lei Zhu, Ying Wu

摘要:

本文从理论上研究了两个\qubits“系统(一个量子比特具有一个辅助能级)与单模谐振腔在超强耦合区的相互作用模型。通过对量子比特的激发态进行适当的编码,可以使单光子同时激发两个量子比特而不破坏系统的宇称对称性。在忽略系统耗散的情况下,确定了实现高概率逼近1的最优参数方案。此外,利用实验上可行的参数,我们还分析了系统的耗散动力学,并给出了单光子诱导双量子比特激发的实现。该工作为单光子诱导双量子比特激发提供了一种新的途径,将推动单光子量子技术的发展,并在量子信息科学中具有潜在的应用价值。

英文摘要:

We investigate theoretically the model of two \qubits" system (one qubit having an auxiliary level) interacting with a single-mode resonator in the ultrastrong coupling regime. We show that a single photon could simultaneously excite two qubits without breaking the parity symmetry of system by properly encoding the excited states of qubits. The optimal parameter regime for achieving high probability approaching one is identified in the case of ignoring the system dissipation. Moreover, using experimentally feasible parameters, we also analyze the dissipation dynamics of the system, and present the realization of two-qubit excitation induced by single-photon. This work offers an alternative approach to realize the single-photon-induced two qubits excitation, which should advance the development of single-photon quantum technologies and have potential applications in quantum information science.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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