Reading-out the state of a flux qubit by Josephson transmission line solitons
arXiv:cond-mat/0611680 · doi:10.1103/PhysRevB.75.224504
Abstract
We describe the read-out process of the state of a Josephson flux qubit via solitons in Josephson transmission lines (JTL) as they are in use in the standard rapid single flux quantum (RSFQ) technology. We consider the situation where the information about the state of the qubit is stored in the time delay of the soliton. We analyze dissipative underdamped JTLs, take into account their jitter, and provide estimates of the measuring time and efficiency of the measurement for relevant experimental parameters.
arXiv comment13 pages, 12 figures
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Cited by in corpus (16)
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- Soliton scattering as a measurement tool for weak signals
- Reversible Fluxon Logic: Topological particles allow ballistic gates along 1D paths
- Statistics of Measurement of Non-commuting Quantum Variables: Monitoring and Purification of a qubit
- Drastically suppressing the error of ballistic readout of qubits
- Antiferromagnetic Bloch line driven by spin current as room-temperature analog of a fluxon in a long Josephson junction
- Asynchronous Reversible Computing Unveiled Using Ballistic Shift Registers
- Fluxon interaction with the finite-size dipole impurity
- Detector of microwave photon pairs based on a Josephson photomultiplier
- Resonant fluxon transmission through impurities
- Single flux quantum circuits with damping based on dissipative transmission lines
- Scattering of quasi-one-dimensional solitons on impurities in large Josephson junctions
- Accurate Qubit Control with Single Flux Quantum Pulses
- Simulation of a rapid qubit readout dependent on the transmission of a single fluxon
- Detection of low-energy fluxons from engineered long Josephson junctions for efficient computing