Challenges
Datasets
Workspaces
Papers
Discussions
Leaderboard
Log inSign up
Challenges
Datasets
Workspaces
Papers
Discussions
Leaderboard
Blog
Job Board
Q3AS

© 2026 Aqora Quantum S.A.S.

TermsPrivacyLegal Notice

Optics Communications

Quantum information transfer with Cooper-pair box qubits in circuit QED

Zhi‐Bo Feng, Cai Zi-liang, Chunli Zhang, Libo Fan, Tuanhui Feng

Published Jan 21, 2010• 12 citations
Publisher
DOI
10.1016/j.optcom.2010.01.002

Related papers

Scalable geometric quantum computing with Cooper-pair box qubits in circuit QED

Zhi‐Bo Feng, Chunli Zhang

Physica C Superconductivity•Jan 12, 2010•2 citations

Quantum state transfer with a two-dimensional Cooper-pair box qubit array

Zhi‐Bo Feng, Run‐Ying Yan, Yun-Qing Zhou

Quantum Information Processing•Dec 15, 2011•11 citations

High-fidelity quantum state transfer using Cooper-pair box qubits

Zhi‐Bo Feng, M. Li

Physica C Superconductivity•Oct 12, 2014•3 citations

Cooper-pair-box qubits in a quantum electrodynamic cavity

J. Q. You, Franco Nori

Physica E Low-dimensional Systems and Nanostructures•Feb 28, 2003•37 citations

Quantum Information Transfer in Circuit QED with Landau—Zener Tunneling

Jun-Wang Li, Chun-Wang Wu, Hong‐Yi Dai

We propose a scheme to implement quantum information transfer between Cooper-pair boxes (CPBs) in a circuit quantum electrodynamic (QED) system with Landau—Zener tunneling. The system consists of two CPB qubits and a one-dimensional transmission line resonator (TLR). By analytically solving the eigenequation and numerically calculating the transition probability, the results show the quantum state transfer from one qubit to another via a fast adiabatic passage. The coupling mechanism is robust against decoherence effects.

Chinese Physics Letters•Sep 1, 2011•11 citations

Andreev probing of a Cooper-pair flying qubit

Sunghun Park, L. Y. Gorelik, S. I. Kulinich +3 more

We propose a superconducting nanomechanical device that can actuate and probe an oscillating flying qubit facilitating quantum information transfer over a distance. The flying qubit is formed by a movable Cooper-pair box (CPB) consisting of a superconducting dot and a bulk superconductor, which are entangled by lifting the Coulomb blockade of Cooper-pair tunneling electrostatically. We show that flying qubit states formed on a movable CPB can be observed in electron transport to a normal electrode via Andreev reflections. The charge transfer due to periodic mechanical motion of CPB leads to the occurrence of a nonzero current at zero bias voltage, and its coherence can be identified through the oscillatory current dependence of the current on a gate voltage. The proposed device provides a building block for dissipationless quantum information circuits.

Physical review. B./Physical review. B•Apr 3, 2025•2 citations
We propose a scheme to implement quantum information transfer between Cooper-pair boxes (CPBs) in a circuit quantum electrodynamic (QED) system with Landau—Zener tunneling. The system consists of two CPB qubits and a one-dimensional transmission line resonator (TLR). By analytically solving the eigenequation and numerically calculating the transition probability, the results show the quantum state transfer from one qubit to another via a fast adiabatic passage. The coupling mechanism is robust against decoherence effects.
We propose a superconducting nanomechanical device that can actuate and probe an oscillating flying qubit facilitating quantum information transfer over a distance. The flying qubit is formed by a movable Cooper-pair box (CPB) consisting of a superconducting dot and a bulk superconductor, which are entangled by lifting the Coulomb blockade of Cooper-pair tunneling electrostatically. We show that flying qubit states formed on a movable CPB can be observed in electron transport to a normal electrode via Andreev reflections. The charge transfer due to periodic mechanical motion of CPB leads to the occurrence of a nonzero current at zero bias voltage, and its coherence can be identified through the oscillatory current dependence of the current on a gate voltage. The proposed device provides a building block for dissipationless quantum information circuits.