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

Quantum control and quantum measurement in solid state qubits

Luca Chirolli

Published Jan 1, 2010• 0 citations
OpenAlex

Related papers

Mesoscopic quantum dynamics: solid-state qubits and quantum measurements

D. V. Averin

•Sep 12, 2006•0 citations

Demonstration of entanglement-by-measurement of solid-state qubits

Wolfgang Pfaff, T. H. Taminiau, Lucio Robledo +4 more

arXiv:1206.2031•Nature Physics•Oct 12, 2012•173 citations

Solid State Qubits with Current-Controlled Coupling

T. Hime

Bulletin of the American Physical Society•Mar 7, 2007•0 citations

Rapid purification of a solid state charge qubit

Jason F. Ralph, Elias J. Griffith, Charles D. Hill +1 more

This paper discusses the use of continuous weak measurement and quantum feedback for the rapid purification of the quantum state of a model solid state qubit: a superconducting Cooper pair box. The feedback algorithm uses Jacobs' rapid purification protocol, which starts with a completely mixed state and applies controls to rotate the qubit Bloch vector onto the plane orthogonal to the measurement axis. This rotation maximises the rate of increase of the average purity of the state but can require large changes in the control fields to produce the required rotation. Since solid state qubits have finite controls and feedback channels have limited bandwidth, such rotations may not be practical. This paper applies Jacobs' protocol to the Cooper pair box with realistic control fields.

Proceedings of SPIE, the International Society for Optical Engineering/Proceedings of SPIE•May 5, 2006•2 citations

Quantum control of entanglement and information of two solid state qubits: remote control of dephasing

Shangbin Li, Jing‐Bo Xu

We investigate the scheme for controlling information characterized by Von-Neumann entropy and the stationary state entanglement characterized by concurrence of two solid state qubits in the collective dephasing channel. It is shown that the local maximal value of the stationary state concurrence always corresponds to the local minimal value of information. We also propose a scheme for remotely controlling the entanglement of two solid state qubits against the collective dephasing. This idea may open a door to remotely suppress the detrimental effects of decoherence.

arXiv:quant-ph/0504227•Apr 29, 2005•0 citations

Quantum measurement in superconducting qubits

Michael Hatridge

Bulletin of the American Physical Society•Mar 7, 2019•0 citations
This paper discusses the use of continuous weak measurement and quantum feedback for the rapid purification of the quantum state of a model solid state qubit: a superconducting Cooper pair box. The feedback algorithm uses Jacobs' rapid purification protocol, which starts with a completely mixed state and applies controls to rotate the qubit Bloch vector onto the plane orthogonal to the measurement axis. This rotation maximises the rate of increase of the average purity of the state but can require large changes in the control fields to produce the required rotation. Since solid state qubits have finite controls and feedback channels have limited bandwidth, such rotations may not be practical. This paper applies Jacobs' protocol to the Cooper pair box with realistic control fields.
We investigate the scheme for controlling information characterized by Von-Neumann entropy and the stationary state entanglement characterized by concurrence of two solid state qubits in the collective dephasing channel. It is shown that the local maximal value of the stationary state concurrence always corresponds to the local minimal value of information. We also propose a scheme for remotely controlling the entanglement of two solid state qubits against the collective dephasing. This idea may open a door to remotely suppress the detrimental effects of decoherence.