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A Superconducting Nanowire Binary Shift Register
- Source :
- Appl. Phys. Lett. 122, 152601 (2023)
- Publication Year :
- 2023
-
Abstract
- We present a design for a superconducting nanowire binary shift register, which stores digital states in the form of circulating supercurrents in high-kinetic-inductance loops. Adjacent superconducting loops are connected with nanocryotrons, three terminal electrothermal switches, and fed with an alternating two-phase clock to synchronously transfer the digital state between the loops. A two-loop serial-input shift register was fabricated with thin-film NbN and achieved a bit error rate less than $10^{-4}$, operating at a maximum clock frequency of $83\,\mathrm{MHz}$ and in an out-of-plane magnetic field up to $6\,\mathrm{mT}$. A shift register based on this technology offers an integrated solution for low-power readout of superconducting nanowire single photon detector arrays, and is capable of interfacing directly with room-temperature electronics and operating unshielded in high magnetic field environments.<br />Comment: The following article has been published in Applied Physics Letters issue 122. 10 pages, 3 figures
- Subjects :
- Physics - Applied Physics
Subjects
Details
- Database :
- arXiv
- Journal :
- Appl. Phys. Lett. 122, 152601 (2023)
- Publication Type :
- Report
- Accession number :
- edsarx.2302.04942
- Document Type :
- Working Paper
- Full Text :
- https://doi.org/10.1063/5.0144685