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Towards quantum-noise limited multiplexed microwave readout of qubits
- Source :
- 2016 IEEE MTT-S International Microwave Symposium (IMS).
- Publication Year :
- 2016
- Publisher :
- IEEE, 2016.
-
Abstract
- Coherent circuits based on superconducting elements hold tremendous promise for the practical implementation of quantum information technology: advanced computation, cryptography, and hardware simulation of complex materials systems are envisioned applications. Such circuits are essentially engineered atoms with level transitions in the 4–8 GHz regime; as such “read” and “write” operations are performed with the aid of fast microwave pulses and low-noise amplifiers, respectively. Recent advances in cavity-based superconducting parametric amplifiers have enabled real-time measurement and feedback in one and two qubits. We demonstrate a novel Josephson junction transmission-line based traveling-wave amplifier which employs sub-wavelength phase matching resonators to achieve high gain, several GHz of bandwidth, and near quantum-noise limited performance. Such devices will enable multiplexed qubit readout in integrated architectures comprised of a variety of microwave frequency analog and digital superconducting technologies: signal sources, multiplexers, ADCs, DACs, mixers, and amplifiers.
- Subjects :
- Physics
Josephson effect
business.industry
Amplifier
Quantum noise
Electrical engineering
Transistor array
02 engineering and technology
021001 nanoscience & nanotechnology
01 natural sciences
Multiplexer
Qubit
0103 physical sciences
Hardware_INTEGRATEDCIRCUITS
Electronic engineering
Quantum information
010306 general physics
0210 nano-technology
business
Quantum computer
Subjects
Details
- Database :
- OpenAIRE
- Journal :
- 2016 IEEE MTT-S International Microwave Symposium (IMS)
- Accession number :
- edsair.doi...........8165bd02675d889da19af4e8536ecf89