Minimal resonator loss for circuit quantum electrodynamics

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 (15)

• Circuit Quantum Electrodynamics: Coherent Coupling of a Single Photon to a Cooper Pair Box
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• Decoherence in Josephson Qubits from Dielectric Loss
• 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
• Dephasing of a superconducting qubit induced by photon noise
• Microwave Dielectric Loss at Single Photon Energies and milliKelvin Temperatures
• Tunable resonators for quantum circuits
• Improving the Coherence Time of Superconducting Coplanar Resonators
• Cavity QED with separate photon storage and qubit readout modes
• Contribution of dielectrics to frequency and noise of NbTiN superconducting resonators
• Quasiparticle relaxation in optically excited high-Q superconducting resonators
• Losses in coplanar waveguide resonators at millikelvin temperatures
• On the properties of superconducting planar resonators at mK temperatures

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• Improving the performance of superconducting microwave resonators in magnetic fields
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• Quasiparticles in superconducting qubits with asymmetric junctions
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• Identifying capacitive and inductive loss in lumped element superconducting hybrid titanium nitride/aluminum resonators
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• An analysis method for transmission measurements of superconducting resonators with applications to quantum-regime dielectric-loss measurements
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• Planar Superconducting Whispering Gallery Mode Resonators
• Suppression of radiation loss in high kinetic inductance superconducting co-planar waveguides
• Reactive magnetron sputter deposition of superconducting niobium titanium nitride thin films with different target sizes
• Magnetic field robust high quality factor NbTiN superconducting microwave resonators
• Shaping photons: quantum computation with bosonic cQED
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• Characterization of low loss microstrip resonators as a building block for circuit QED in a 3D waveguide
• Quantum bath engineering of a high impedance microwave mode through quasiparticle tunneling
• Low loss hybrid Nb/Au superconducting resonators for quantum circuit applications
• 1/f noise of Josephson-junction-embedded microwave resonators at single photon energies and millikelvin temperatures
• Thin film metrology and microwave loss characterization of indium and aluminum/indium superconducting planar resonators
• Characterization of process-related interfacial dielectric loss in aluminum-on-silicon by resonator microwave measurements, materials analysis, and imaging
• Photon-induced thermal effects in superconducting coplanar waveguide resonators
• Superconducting Pb stripline resonators in parallel magnetic field and their application for microwave spectroscopy
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• Analysis of a single-mode waveguide at sub-terahertz frequencies as a communication channel
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• Simultaneous model selection and parameter estimation: A superconducting qubit coupled to a bath of incoherent two-level systems
• High Quality Stepped-Impedance Resonators Suitable for Circuit-QED Measurement of Superconducting Artificial Atoms
• Highly tunable NbTiN Josephson junctions fabricated with focused helium ion beam
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• Enhanced Tantalum Superconducting Resonator Performance via All-Surface Organic Monolayer Passivation
• Review of Superconducting Qubit Devices and Their Large-Scale Integration
• Magnetoconductance and photoresponse properties of disordered NbTiN films