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Quantum Information Processing
Erschienen in: Quantum Information Processing 7/2015

01.07.2015

Preparation of multi-qubit W states in multiple resonators coupled by a superconducting qubit via adiabatic passage

verfasst von: Xin Wei, Mei-Feng Chen

Erschienen in: Quantum Information Processing | Ausgabe 7/2015

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Abstract

We propose an efficient scheme to prepare W state of \(N\) superconducting (SC) qubits in \(N\) spatially separated coplanar waveguide (CPW) resonators via adiabatic passage. The \(N\) CPW resonators, each trapping a SC qubit, are coupled only by a superconducting coupler (SCC) qubit. Based on a circuit quantum electrodynamics system, our scheme can be controlled and implemented easily in experiment. As a model of a plurality of separated cavities coupled to a SCC qubit, our protocol can be useful in scalable distributed quantum networks. By introducing adiabatic passage into our model, there is no need to control the Rabi frequency of classical field and the interaction time precisely during the whole operation. Also, the dissipation from the resonators and the energy relaxation can be omitted approximately.
Vorheriger Artikel Approximate controllability of the two trapped ions system
Nächster Artikel Hyperfine spin qubits in irradiated malonic acid: heat-bath algorithmic cooling

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Metadaten
Titel
Preparation of multi-qubit W states in multiple resonators coupled by a superconducting qubit via adiabatic passage
verfasst von
Xin Wei
Mei-Feng Chen
Publikationsdatum
01.07.2015
Verlag
Springer US
Erschienen in
Quantum Information Processing / Ausgabe 7/2015
Print ISSN: 1570-0755
Elektronische ISSN: 1573-1332
DOI
https://doi.org/10.1007/s11128-015-0973-5

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