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Superconducting Qubits
Microwave Circulation in an Extended Josephson Junction Ring
arXiv
Authors: Dat Thanh Le, Arkady Fedorov, Thomas M. Stace
Year
2025
Paper ID
16347
Status
Preprint
Abstract Read
~2 min
Abstract Words
94
Citations
N/A
Abstract
Circulators are nonreciprocal devices that enable directional signal routing. Nonreciprocity, which requires time-reversal symmetry breaking, can be produced in waveguides in which the propagation medium moves relative to the waveguide at a moderate fraction of the wave speed. Motivated by this effect, here we propose a design for nonreciprocal microwave transmission based on an extended, annular Josephson junction, in which the propagation medium consists of a train of moving fluxons. We show how to harness this to build a high-quality resonant microwave circulator, and we theoretically evaluate the anticipated performance of such a device.
Why This Paper Matters
- This paper contributes to the Superconducting Qubits research area in the Quantum Articles archive.
- It adds a 2025 reference point for readers tracking recent quantum research.
- Circulators are nonreciprocal devices that enable directional signal routing.
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