A Fast-Cycle Charge Noise Measurement for Better Qubits
- Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)
Defects in materials are an ongoing challenge for quantum bits, so called qubits. Solid state qubits—both spins in semiconductors and superconducting qubits—suffer from losses and noise caused by two-level-system (TLS) defects thought to reside on surfaces and in amorphous materials. Understanding and reducing the number of such defects is an ongoing challenge to the field. Superconducting resonators couple to TLS defects and provide a handle that can be used to better understand TLS. We develop noise measurements of superconducting resonators at very low temperatures (20 mK) compared to the resonant frequency, and low powers, down to single photon occupation.
- Research Organization:
- Sandia National Laboratories (SNL-NM), Albuquerque, NM (United States)
- Sponsoring Organization:
- USDOE National Nuclear Security Administration (NNSA)
- DOE Contract Number:
- NA0003525
- OSTI ID:
- 1822277
- Report Number(s):
- SAND2021-11937; 700131
- Country of Publication:
- United States
- Language:
- English
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Fri Sep 30 20:00:00 EDT 2022
· Phys.Rev.Applied
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OSTI ID:1877631