Global Affairs

EU–Japan Quantum Science Collaboration: A Comprehensive Report

Michael Frick

23 May 2025 — 8 min read

Introduction

In May 2025, the European Union and Japan launched a landmark initiative to deepen cooperation in quantum science and technology. This strategic partnership is designed to accelerate breakthroughs in quantum computing and communications, secure a technological edge, and address security and digital sovereignty challenges. The move underscores Europe’s intent to strengthen alliances beyond the continent and maintain competitiveness in emerging technologies. This report provides an in-depth analysis of the background, objectives, scope, mechanisms, and implications of the EU–Japan quantum science collaboration, situating it within the broader context of global technological competition and digital transformation.

1. Background and Strategic Rationale

1.1 The Global Quantum Race

Quantum technologies—encompassing quantum computing, quantum communication, and quantum sensing—are widely recognized as transformative. They promise to revolutionize industries ranging from pharmaceuticals and materials to finance, logistics, and national security. The global race for quantum supremacy is intensifying, with the United States and China making significant investments and strategic moves.

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