Microwave Circulation in an Extended Josephson Junction Ring

Fuente: arXiv
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Main Authors: Le, Dat Thanh, Fedorov, Arkady, Stace, Thomas M.
Format: Preprint
Published: 2025
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author Le, Dat Thanh
Fedorov, Arkady
Stace, Thomas M.
author_facet Le, Dat Thanh
Fedorov, Arkady
Stace, Thomas M.
contents 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.
format Preprint
id arxiv_https___arxiv_org_abs_2512_02264
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle Microwave Circulation in an Extended Josephson Junction Ring
Le, Dat Thanh
Fedorov, Arkady
Stace, Thomas M.
Quantum Physics
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.
title Microwave Circulation in an Extended Josephson Junction Ring
topic Quantum Physics
url https://arxiv.org/abs/2512.02264