skip to main content


Title: Quantum Memristors with Superconducting Circuits

Memristors are resistive elements retaining information of their past dynamics. They have garnered substantial interest due to their potential for representing a paradigm change in electronics, information processing and unconventional computing. Given the advent of quantum technologies, a design for a quantum memristor with superconducting circuits may be envisaged. Along these lines, we introduce such a quantum device whose memristive behavior arises from quasiparticle-induced tunneling when supercurrents are cancelled. Here in this paper, for realistic parameters, we find that the relevant hysteretic behavior may be observed using current state-of-the-art measurements of the phase-driven tunneling current. Finally, we develop suitable methods to quantify memory retention in the system.
 [1] ;  [2] ;  [3] ;  [4] ;  [5]
  1. Yale Univ., New Haven, CT (United States). Dept. of Physics; Univ. of the Basque Country, Donostia (Spain). Dept. of Physical Chemistry; Aalto Univ., Otaniemi (Finland). QCD Labs, COMP Centre of Excellence, Dept. of Applied Physics
  2. Bavarian Academy of Sciences and Humanities, Garching (Germany). Walther-MeiBner-Inst.; Technische Univ. Munich (Germany). Physics Dept.; Nanosystems Initiative Munich (NIM), Munich (Germany)
  3. Univ. of California, San Diego, CA (United States). Dept. of Physics
  4. Univ. of the Basque Country, Donostia (Spain). Dept. of Physical Chemistry
  5. Univ. of the Basque Country, Donostia (Spain). Dept. of Physical Chemistry; Ikerbasque, Basque Foundation for Science, Bilbao (Spain)
Publication Date:
Grant/Contract Number:
FG02-05ER46204; IT986-16; IS2015-69983-P
Accepted Manuscript
Journal Name:
Scientific Reports
Additional Journal Information:
Journal Volume: 7; Journal ID: ISSN 2045-2322
Nature Publishing Group
Research Org:
Univ. of California, San Diego, CA (United States)
Sponsoring Org:
USDOE; Finnish Cultural Foundation; Basque Government; European Union (EU)
Country of Publication:
United States
97 MATHEMATICS AND COMPUTING; Quantum information; Superconducting devices
OSTI Identifier: