Weak continuous monitoring of a flux qubit using coplanar waveguide resonator
arXiv:0910.4739 · doi:10.1103/PhysRevB.81.172505
Abstract
We study a flux qubit in a coplanar waveguide resonator by measuring transmission through the system. In our system with the flux qubit decoupled galvanically from the resonator, the intermediate coupling regime is achieved. In this regime dispersive readout is possible with weak backaction on the qubit. The detailed theoretical analysis and simulations give a good agreement with the experimental data and allow to make the qubit characterization.
4 pages, 3 figures, to be published in Phys. Rev. B
References in corpus (6)
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- Control of spectroscopic features of multiphoton transitions in two coupled qubits by driving fields
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- Driving-induced resonance narrowing in a strongly coupled cavity-qubit system
- Controlling the energy gap of a tunable two-level system by ac drive
- Probabilistic motional averaging
- Ultrastrong coupling in a scalable design for circuit QED with superconducting flux qubits
- Resonance at the Rabi frequency in a superconducting flux qubit
- Current biased gradiometric flux qubit in a circuit-QED architecture