Areas covered by cryogenic electronics are 1 not covered by other irds ifts, and 2 in need of technology roadmaps. Digital bits encoded as single flux quanta sfq 3 j s digital 1 15 0 2 2. The rsfq rapid single flux quantum digital superconducting electronics activity, conducted in close collaboration with several laboratories. If you are interested in the gds files of the junctions or more detailed information please feel free to contact us. An input stage, a buffer, and an or gate were simulated and laid out for a standard. Rapid single flux quantum tflip flop operating up to 770. Single flux quantum sfq logic relies on voltage pulses generated by 2. Rapidsinglefluxquantum matrix multiplication circuit.
Static timing analysis of rapid singlefluxquantum circuits r412. A new josephson junction logic called rapid single flux quantum logic rsfq was introduced in 1985 by k. Some basic cells in the rapid singleflux quantum rsfq family of superconductive logic circuits were studied. Rsfq deals with the generation and manipulation of magnetic flux quanta in the form of short voltage pulses across a josephson weak link. It is based on manipulation of magnetic single flux quanta sfq 0 h2e with energy of 2 x1019 joule or 5x103 k bt ln2 at t 4 k. Lowjitter single flux quantum signal readout from superconducting single photon detector. Stochastic single flux quantum neuromorphic computing using. Abstractsingle flux quantum sfq logic is a promising candidate to replace the cmos logic for high speed and low power applications due. Toplevel structure for a superconductor electronics and quantum information processing roadmap. Superconductor single flux quantum technology has such an alternative physical mechanism for device operation. Superconducting rapidsinglefluxquantum rsfq circuit technology is an emerging technology with high switching speed and low energy consumption1. The proposed circuit utilizes characteristics of pulse logic used in rsfq circuits and utilizes bitlevel processing.
Single flux quantum sfq logic with switching energy of 100zj1 and switching delay of 1ps is a promising postcmos candidate. Roadmapping cryogenic electronics and quantum information. Rapid single flux quantum tflip flop operating up to 770 ghz applied superconductivity, ieee transactions on author. With the reorganization of itrs as irds under ieee, there is no longer a limitation to semiconductors. What links here related changes upload file special pages permanent link page. Rearrange individual pages or entire files in the desired order. Sfq devices can be divided into two big groups, defined by the method used to pass the information between logic circuits. We developed a singlefluxquantum sfq readout technology for superconducting. Rapid singlefluxquantum t flipflop operating at 770 ghz. This is why recently much attention was turned to alternative fluxstate or singlefluxquantum, or sfq logic which uses coding of the binary information not by the dc voltage, but by single quanta of magnetic flux 0 h2e 2.
The circuit carries out multiplications and additions by counting pulses on signal lines. A technology mapping tool for single flux quantum logic. B r digital 0 josephson junctions superconducting state i magnetic flux quantization based on lectures at chalmers university of technology, sweden. In electronics, rapid single flux quantum rsfq is a digital electronic device that uses. Balanced factorization and rewriting algorithms for synthesizing. Osa lowjitter single flux quantum signal readout from.
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