Advanced Science· 2026Q1· Review
Advances in Josephson Junction Materials and Processes Toward Practical Quantum Computing
- 5citations
- Q1SCImago
- 2026year
Short summary
Advances in materials science, device characterization, and nanofabrication are addressing key challenges in Josephson junctions (JJs) for practical quantum computing, moving them closer to industrial-scale processors.
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Key points
- Josephson junctions (JJs) are fundamental to superconducting quantum computing.
- Practical quantum computing demands high reproducibility, low power consumption, tunability, small footprint, and noise resilience from JJs.
- Advances in materials science, device characterization, and nanofabrication are crucial for meeting these demands.
- Fabrication strategies are evolving from conventional methods to foundry-compatible processes, incorporating emerging JJ materials.
AI-generated from the title and abstract; the full text is not read.
Abstract
The Josephson junction (JJ) is the fundamental nonlinear building block of superconducting quantum technologies. Its macroscopic quantum tunneling physics underpins superconducting quantum computing, sensing, and communication, but scaling these platforms to utility-scale architectures places increasingly stringent demands on junction materials, interfaces, and fabrication. Practical quantum computing requires high reproducibility, low power consumption, tunability, a small device footprint, and resilience to noise and defects. This review surveys how advances in materials science, device characterization, and nanofabrication are addressing these challenges and redefining the figures of merit for next-generation JJs. This review also examines the evolution of fabrication strategies, from conventional multi-angle evaporation to foundry-compatible superconducting processes and the integration of emerging junction materials. Progress along these directions will determine how rapidly JJs move from laboratory-scale components to the foundation of industrial-scale quantum processors.
The authors' abstract, as published at the source. Advanced Science, 2026 · DOI ↗
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Field: Astronomy and Astrophysics
Astronomy and AstrophysicsPhysics and Astronomy