Hybrid quantum circuit consisting of a superconducting flux qubit coupled to a spin ensemble and a transmission-line resonator

Hybrid quantum circuit consisting of a superconducting flux qubit coupled to a spin ensemble and a transmission-line resonator
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由耦合到自旋系综的超导通量量子位和传输线谐振器组成的混合量子电路

DOI:
10.1103/physrevb.87.144516
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发表时间:
2012-11
期刊:
影响因子:
3.7
通讯作者:
Nori, Franco
Nori, Franco
中科院分区:
物理与天体物理2区
文献类型:
--
作者:
Xiang, Ze-Liang;Lu, Xin-You;Li, Tie-Fu;You, J. Q.;Nori, Franco

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我们提出了一种实验上可实现的混合量子电路,通过超导通量量子比特作为数据总线实现自旋综和传输在线谐振器之间的强耦合。由此产生的耦合可以用来在自旋综和谐振腔之间传递量子信息。特别是,与没有数据总线的直接耦合相比,我们的方法需要更少的自旋来实现自旋系综和谐振器之间的强耦合(例如,少三到四个数量级)。这种混合量子电路可以在自旋系综中存储信息时实现长时间的量子记忆,并允许探索超强耦合状态下的非线性效应。
We propose an experimentally realizable hybrid quantum circuit for achieving a strong coupling between a spin ensemble and a transmission-line resonator via a superconducting flux qubit used as a data bus. The resulting coupling can be used to transfer quantum information between the spin ensemble and the resonator. In particular, in contrast to the direct coupling without a data bus, our approach requires far less spins to achieve a strong coupling between the spin ensemble and the resonator (e.g., three to four orders of magnitude less). This proposed hybrid quantum circuit could enable a long-time quantum memory when storing information in the spin ensemble, and allows the possibility to explore nonlinear effects in the ultrastrong-coupling regime.
DOI: --
发表时间: 2011
期刊: --
影响因子: --
作者:
M. Rosseinsky
通讯作者: M. Rosseinsky
DOI: --
发表时间: 1975
期刊: --
影响因子: --
作者:
Shinji Watanabe;Yasuhiro Minami;Atsushi Nakamura;Naonori Ueda
通讯作者: Shinji Watanabe;Yasuhiro Minami;Atsushi Nakamura;Naonori Ueda