Minimal resonator loss for circuit quantum electrodynamics
arXiv:1005.0408 · doi:10.1063/1.3458705
Abstract
Single photon level quality factors of 500x10^3 are shown in NbTiN superconducting resonators at millikelvin temperatures. This result originates from the intrinsic low dielectric loss of NbTiN, as demonstrated by comparison with Ta, and by removing unnecessary parts of the dielectric substrate.
4 pages, 3 figures
References in corpus (8)
- Coupling Superconducting Qubits via a Cavity Bus
- Coherent quantum state storage and transfer between two phase qubits via a resonant cavity
- Controlling the spontaneous emission of a superconducting transmon qubit
- Experimental evidence for a surface distribution of two-level systems in superconducting lithographed microwave resonators
- Microwave Dielectric Loss at Single Photon Energies and milliKelvin Temperatures
- Tunable resonators for quantum circuits
- Contribution of dielectrics to frequency and noise of NbTiN superconducting resonators
- Quasiparticle relaxation in optically excited high-Q superconducting resonators