Search Results - "Niepce, David"
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1
Decoherence benchmarking of superconducting qubits
Published in npj quantum information (26-06-2019)“…We benchmark the decoherence of superconducting transmon qubits to examine the temporal stability of energy relaxation, dephasing, and qubit transition…”
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Journal Article -
2
On the angular dependence of InP high electron mobility transistors for cryogenic low noise amplifiers in a magnetic field
Published in AIP advances (01-08-2019)“…The InGaAs-InAlAs-InP high electron mobility transistor (InP HEMT) is the preferred active device used in a cryogenic low noise amplifier (LNA) for sensitive…”
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Journal Article -
3
High quality three-dimensional aluminum microwave cavities
Published in Applied physics letters (17-08-2020)“…We present a comprehensive study of internal quality factors in superconducting stub-geometry three-dimensional cavities made of aluminum. We use wet etching,…”
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Journal Article -
4
Stability of superconducting resonators: Motional narrowing and the role of Landau-Zener driving of two-level defects
Published in Science advances (24-09-2021)“…Frequency instability of superconducting resonators and qubits leads to dephasing and time-varying energy loss and hinders quantum processor tune-up. Its main…”
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Journal Article -
5
Superinductance and Fluctuating Two-Level Systems: Loss and Noise in Disordered and Non-Disordered Superconducting Quantum Devices
Published 01-01-2020“…In this thesis, we first demonstrate that a disordered superconductor with high kinetic inductance can realise a microwave low-loss, non-dissipative circuit…”
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Dissertation -
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Nanowire Superinductors
Published 01-01-2018“…In this thesis, we demonstrate that a disordered superconductor with a high kinetic inductance can realize a low microwave loss, non-dissipative circuit…”
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Dissertation -
7
High Kinetic Inductance NbN Nanowire Superinductors
Published 05-02-2018“…Phys. Rev. Applied 11, 044014 (2019) We demonstrate that a high kinetic inductance disordered superconductor can realize a low microwave loss, non-dissipative…”
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Journal Article -
8
Stability of superconducting resonators: motional narrowing and the role of Landau-Zener driving of two-level defects
Published 17-08-2020“…Frequency instability of superconducting resonators and qubits leads to dephasing and time-varying energy-loss and hinders quantum-processor tune-up. Its main…”
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Journal Article -
9
Noise and loss of superconducting aluminium resonators at single photon energies
Published 30-01-2018“…The loss and noise mechanisms of superconducting resonators are useful tools for understanding decoherence in superconducting circuits. While the loss…”
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Journal Article -
10
Geometric Scaling of Two-Level-System Loss in Superconducting Resonators
Published 07-08-2019“…We perform an experimental and numerical study of dielectric loss in superconducting microwave resonators at low temperature. Dielectric loss, due to two-level…”
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Journal Article -
11
Decoherence benchmarking of superconducting qubits
Published 13-05-2019“…npj Quantum Informationvolume 5, Article number: 9 (2019) We benchmark the decoherence of superconducting qubits to examine the temporal stability of…”
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Journal Article -
12
Angular Dependence of InP High Electron Mobility Transistors for Cryogenic Low Noise Amplifiers under a magnetic field
Published in 2019 Compound Semiconductor Week (CSW) (01-05-2019)“…This work addresses the angular dependence of DC properties in InP HEMT devices under the influence of applied static magnetic field at 2 K. When kept at an…”
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Conference Proceeding -
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On the Angular Dependence of InP High Electron Mobility Transistors for Cryogenic Low Noise Amplifiers in a Magnetic Field
Published 29-04-2019“…The InGaAs-InAlAs-InP high electron mobility transistor (InP HEMT) is the preferred active device used in a cryogenic low noise amplifier (LNA) for sensitive…”
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Journal Article