A quantum standard for sampled electrical measurements - main goals and first results of the EMRP project Q-WAVE

Kohlmann, J.; Behr, R.; Kieler, Oliver; Rois, J. Diaz de Aguilar; Šíra, Martin; Sosso, A.; Trinchera, Bruno; Gran, Jarle; Malmbekk, Helge; Jeanneret, B.; Overney, F.; Nissilä, J.; Lehtonen, Tapio; Ireland, Jane; Williams, J.E.C.; Lapuh, R.; Voljc, Bostjan; Bergsten, Tobias; Eklund, Gunnar; Ozturk, Tezgul Coskun; Houtzager, E.; Brom, Helko E. van den; Øhlckers, Per

doi:10.1109/cpem.2014.6898489

Cited by 4 publications

(1 citation statement)

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“…Several efforts on improvement of quantum voltage sources and on their direct use to ensure traceability of most precision digital systems are widely addressed * in [3]. However, to be operated as quantum voltage synthesizers, the series array of Josephson junctions must be sufficiently well-characterized.…”

Section: Introductionmentioning

confidence: 99%

Wideband digital modular system for dynamic characterization of PJVS

Trinchera

Sosso

Pogliano

et al. 2014

29th Conference on Precision Electromagnetic Measurements (CPEM 2014)

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This work deals with the use of high precision digital modular systems, employed towards a wideband chassis, for use with PJVS devices. A key feature of digital modular systems lies on their fast software reconfigurability, exploited to better adapt characteristics as well as performances of different boards (e.g., DACs, ADCs, timing and synchronization) to a specific experimental setup. A compact and modular wideband measurement system suitable to interact dynamically with series array of Josephson junctions is developed. Synchronous digital modules for digital synthesis of isofrequential LF triangular and RF rectangular patterns and precise sampling are used for realtime characterization of sections of a PJVS chip, which operates in a two-stage (4 K) cryocooler system. A suitable synchronous program has been developed and new algorithms are being tested for synthesis of arbitrary LF quantum waveforms, that will be used for direct traceability of digital systems .

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Section: Introductionmentioning

confidence: 99%