Proposal for Coherent Coupling of Majorana Zero Modes and Superconducting Qubits Using the 4π Josephson Effect

被引：57

作者：

Pekker, David ^{[1
]}

Hou, Chang-Yu ^{[1
,2
]}

Manucharyan, Vladimir E. ^{[3
]}

Demler, Eugene ^{[4
]}

机构：

[1] CALTECH, Dept Phys, Pasadena, CA 91125 USA

[2] Univ Calif Riverside, Dept Phys & Astron, Riverside, CA 92521 USA

[3] Harvard Univ, Soc Fellows, Cambridge, MA 02138 USA

[4] Harvard Univ, Dept Phys, Cambridge, MA 02138 USA

来源：

PHYSICAL REVIEW LETTERS | 2013年 / 111卷 / 10期

关键词：

QUANTUM PHASE-SLIP; NANOWIRE; FERMIONS; FLUCTUATIONS; JUNCTIONS; SIGNATURE;

D O I：

10.1103/PhysRevLett.111.107007

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We propose to use an ancilla fluxonium qubit to interact with a Majorana qubit hosted by a topological one-dimensional wire. The coupling is obtained using the Majorana qubit-controlled 4 pi Josephson effect to flux bias the fluxonium qubit. We demonstrate how this coupling can be used to sensitively identify topological superconductivity, to measure the state of the Majorana qubit, to construct 2-qubit operations, and to implement quantum memories with topological protection.

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页数：5

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