Hybrid Quantum Circuit with a Superconducting Qubit Coupled to a Spin Ensemble

被引：333

作者：

Kubo, Y. ^{[1
]}

Grezes, C. ^{[1
]}

Dewes, A. ^{[1
]}

Umeda, T. ^{[2
]}

Isoya, J. ^{[2
]}

Sumiya, H. ^{[3
]}

Morishita, N. ^{[4
]}

Abe, H. ^{[4
]}

Onoda, S. ^{[4
]}

Ohshima, T. ^{[4
]}

Jacques, V. ^{[5
]}

Dreau, A. ^{[5
]}

Roch, J. -F. ^{[5
]}

Diniz, I. ^{[6
]}

Auffeves, A. ^{[6
]}

Vion, D. ^{[1
]}

Esteve, D. ^{[1
]}

Bertet, P. ^{[1
]}

机构：

[1] CEA Saclay, DSM, IRAMIS, Quantron Grp,SPEC CNRS URA 2464, F-91191 Gif Sur Yvette, France

[2] Univ Tsukuba, Res Ctr Knowledge Communities, Tsukuba, Ibaraki 3058550, Japan

[3] Sumitomo Elect Ind Ltd, Itami, Hyogo 664001, Japan

[4] Japan Atom Energy Agcy, Takasaki, Gunma 3701292, Japan

[5] ENS Cachan, LPQM CNRS UMR 8537, F-94235 Cachan, France

[6] CNRS, Inst Neel, F-38042 Grenoble, France

来源：

PHYSICAL REVIEW LETTERS | 2011年 / 107卷 / 22期

关键词：

GENERATION; STATES;

D O I：

10.1103/PhysRevLett.107.220501

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We report the experimental realization of a hybrid quantum circuit combining a superconducting qubit and an ensemble of electronic spins. The qubit, of the transmon type, is coherently coupled to the spin ensemble consisting of nitrogen-vacancy centers in a diamond crystal via a frequency-tunable superconducting resonator acting as a quantum bus. Using this circuit, we prepare a superposition of the qubit states that we store into collective excitations of the spin ensemble and retrieve back into the qubit later on. These results constitute a proof of concept of spin-ensemble based quantum memory for superconducting qubits.

引用

页数：5

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