Passive On-Chip Superconducting Circulator Using a Ring of Tunnel Junctions
Clemens Müller, Shengwei Guan, Nicolas Vogt, Jared H. Cole, Thomas M. Stace
DOI 10.1103/PhysRevLett.120.213602 · Physical Review Letters
Active bibliographic source — not scientific approval
Bibliographic access preserves source history; it does not approve extracted materials or validate reported claims. Review warnings on each occurrence separately.
Abstract
We present the design of a passive, on-chip microwave circulator based on a ring of superconducting tunnel junctions. We investigate two distinct physical realizations, based on Josephson junctions (JJs) or quantum phase slip elements (QPS), with microwave ports coupled either capacitively (JJ) or inductively (QPS) to the ring structure. A constant bias applied to the center of the ring provides an effective symmetry breaking field, and no microwave or rf bias is required. We show that this design offers high isolation, robustness against fabrication imperfections and bias fluctuations, and a bandwidth in excess of 500 MHz for realistic device parameters.
Similar papers
Operating a passive on-chip superconducting circulator: Device control and quasiparticle effects
similarity 0.94Dat Thanh Le et al.
Source status unknown — claims are unverified
Nonreciprocity and Circulation in a Passive Josephson-Junction Ring
similarity 0.93Arkady Fedorov et al.
Source status unknown — claims are unverified
Widely Tunable On-Chip Microwave Circulator for Superconducting Quantum Circuits
similarity 0.92Benjamin J. Chapman et al.
Source status unknown — claims are unverified
Passive superconducting circulator on a chip
similarity 0.92Rohit Navarathna et al. · 2022 · arXiv:2208.13339
Source status unknown — claims are unverified
Design of an On-Chip Superconducting Microwave Circulator with Octave Bandwidth
similarity 0.91Benjamin J. Chapman et al.
Source status unknown — claims are unverified
Microwave Circulation in an Extended Josephson Junction Ring
similarity 0.91Dat Thanh Le et al.
Source status unknown — claims are unverified