Programmable flux DACs in a Quantum Annealing Processor; Bulletin of the American Physical Society; Vol. 59, № 1
| Parent link: | Bulletin of the American Physical Society.— , 2014 Vol. 59, № 1.— 2014.— Abstract: D35.00013 |
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| Other Authors: | , , , , , , , , , , |
| Summary: | Programming the D-Wave Two processor to solve a given problem involves adjustment of thousands of independent flux biases. This is accomplished with an array of 4480 on-chip digital-to-analog converters (DACs), addressed using 56 external lines. Each DAC comprises a superconducting loop and control circuitry that allows injection of a deterministic number of flux quanta, up to a maximum value determined by the device parameters and the addressing scheme. In-depth characterization is performed to determine DAC transfer-functions and the addressing levels needed for fast and reliable programming. In contrast with traditional single-flux-quanta (SFQ) circuitry, zero static power during programming is dissipated on-chip, allowing efficient operation at mK temperatures. В фонде НТБ ТПУ отсутствует |
| Language: | English |
| Published: |
2014
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| Subjects: | |
| Format: | Book Chapter |
| KOHA link: | https://koha.lib.tpu.ru/cgi-bin/koha/opac-detail.pl?biblionumber=600818 |