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Autores principales: Kreuzer, Alex, Krumrey, Thilo, Tohamy, Hossam, Ionita, Alexandru, Rotzinger, Hannes, Ustinov, Alexey V.
Formato: Preprint
Publicado: 2025
Materias:
Acceso en línea:https://arxiv.org/abs/2503.11437
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author Kreuzer, Alex
Krumrey, Thilo
Tohamy, Hossam
Ionita, Alexandru
Rotzinger, Hannes
Ustinov, Alexey V.
author_facet Kreuzer, Alex
Krumrey, Thilo
Tohamy, Hossam
Ionita, Alexandru
Rotzinger, Hannes
Ustinov, Alexey V.
contents Low-loss inductors are essential components in various superconducting circuits, such as qubits or digital electronics. In this study, we investigate highly compact inductors formed by vertical stacking of Josephson junctions. Our implementation employs multiple layers of aluminum separated by tunnel barriers. Individual stacks are connected by suspended superconducting bridges, which are free of additional dielectric materials and therefore should not contribute significantly to losses. We present implementation details, fabrication results, and device characterization measurements.
format Preprint
id arxiv_https___arxiv_org_abs_2503_11437
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle Stacked Josephson junctions for quantum circuit applications
Kreuzer, Alex
Krumrey, Thilo
Tohamy, Hossam
Ionita, Alexandru
Rotzinger, Hannes
Ustinov, Alexey V.
Superconductivity
Low-loss inductors are essential components in various superconducting circuits, such as qubits or digital electronics. In this study, we investigate highly compact inductors formed by vertical stacking of Josephson junctions. Our implementation employs multiple layers of aluminum separated by tunnel barriers. Individual stacks are connected by suspended superconducting bridges, which are free of additional dielectric materials and therefore should not contribute significantly to losses. We present implementation details, fabrication results, and device characterization measurements.
title Stacked Josephson junctions for quantum circuit applications
topic Superconductivity
url https://arxiv.org/abs/2503.11437