Real-time quantum-accurate voltage waveform synthesis
| Autor: | Stephen Protheroe, Ronald Dekker, Allan Belcher, Oliver Kieler, Jane Ireland, Jonathan M. Williams, Martin Šíra, Bruno Valinoti, Jonas Herick, Ralf Behr, Kars Schaapman, Ricardo Iuzzolino, Rodrigo A. Melo, Marcos E. Bierzychudek |
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| Rok vydání: | 2020 |
| Předmět: |
Josephson effect
Signal generator Computer science 020208 electrical & electronic engineering 02 engineering and technology Delta-sigma modulation 01 natural sciences Signal Generator (circuit theory) 0103 physical sciences Hardware_INTEGRATEDCIRCUITS 0202 electrical engineering electronic engineering information engineering Electronic engineering Waveform 010306 general physics Field-programmable gate array Voltage |
| Zdroj: | 2020 Conference on Precision Electromagnetic Measurements (CPEM). |
| DOI: | 10.1109/cpem49742.2020.9191715 |
| Popis: | A pulse drive system capable of converting an arbitrary input signal into a delta sigma encoded pulse code stream in real time has been demonstrated. This system is based on the use of analog and digital hardware controlled by a Field Programmable Gate Array (FPGA) rather than using software to produce the delta sigma code and then loading it into the memory of a commercial Pulse Pattern Generator (PPG). The results of using the system to drive a Josephson junction array to synthesize quantum-accurate voltage waveforms are presented. The advantage of such a system includes the significant reduction in time required to change waveform parameters. This provides an easily tunable source of high-fidelity stable voltage waveforms at low temperature for future applications including validation of components for use in quantum technologies. |
| Databáze: | OpenAIRE |
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