Josephson vortex-based memory

Abstract

Josephson junctions are currently used as base elements of superconducting logic systems. Long enough junctions subject to magnetic field host quantum phase 2π-singularities - Josephson vortices. Here we report the realization of the superconducting memory whose state is encoded by the number of present Josephson vortices. By integrating the junction into a coplanar resonator and by applying a microwave excitation well below the critical current, we were able to control the state of the memory in an energy-efficent and non-destructive manner. The performance of the device is evaluated, and the routes for creating scalable cryogenic memories directly compatible with superconducting microwave technologies are discussed.

arXiv comment12 pages, 4 figures, 72 reference

References in corpus (30)

• Double-slit photoelectron interference in strong-field ionization of the neon dimer
• Supplementary information for "Quantum supremacy using a programmable superconducting processor"
• Quantum Computing
• A Quantum Engineer's Guide to Superconducting Qubits
• Superconducting Qubits: Current State of Play
• Efficient and robust analysis of complex scattering data under noise in microwave resonators
• Hybrid superconducting-magnetic memory device using competing order parameters
• Beyond Moore's technologies: operation principles of a superconductor alternative
• Tunable resonators for quantum circuits
• Ferromagnetic Josephson switching device with high characteristic voltage
• Quantum--Classical Interface Based on Single Flux Quantum Digital Logic
• Periodic Oscillations of Josephson-Vortex Flow Resistance in Bi${}_2$Sr${}_2$CaCu${}_2$O${}_{8+y}$
• Investigation of microwave loss induced by oxide regrowth in high-Q Nb resonators
• Demonstration of an ac Josephson junction laser
• Memory cell based on a $\phi$ Josephson junction
• Experimental demonstration of a Josephson magnetic memory cell with a programmable π-junction
• Development of Multi-Layer Fabrication Process for SFQ Large Scale Integrated Digital Circuits
• Adiabatic Superconducting Artificial Neural Network: Basic Cells
• Josephson Array Mode Parametric Amplifier
• Intrinsic Josephson junctions in the iron-based multi-band superconductor (V2Sr4O6)Fe2As2
• Tunable Nb superconducting resonators based upon a Ne-FIB-fabricated constriction nanoSQUID
• Cryogenic Neuromorphic Hardware
• Solitonic Josephson-based meminductive systems
• Superconducting resonators with voltage-controlled frequency and nonlinearity
• Protected 0-pi states in SIsFS junctions for Josephson memory and logic
• Static Solitons of the Sine-Gordon Equation and Equilibrium Vortex Structure in Josephson Junctions
• Preliminary demonstration of a persistent Josephson phase-slip memory cell with topological protection
• Word and bit line operation of a 1x1 μm2 superconducting vortex-based memory
• Non-linear microwave impedance of short and long Josephson Junctions
• Compact superconducting microwave resonators based on Al-AlOx-Al capacitor

Cited by in corpus (5)

• Quantum thermodynamics with a single superconducting vortex
• Heat-transfer fingerprint of Josephson breathers
• Nonvolatile Cryogenic Phase Slip Memory with Single-Shot Readout
• Equidistant resonance jumps in superconducting coplanar resonators driven by Abrikosov vortices
• Long-time soliton dynamics via a coarse-grained space-time method