The United Nations declared International Year of Quantum Science and Technology 2025, a new era of “quantum bridging” has emerged as the defining framework for the field. This international event to mark contemporary quantum mechanics‘ 100th anniversary has become a significant quantum engineering promotion. The journal APL Quantum (APQ), approaching its second anniversary, has become a key hub for research that smoothly links basic understanding with real-world application.
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The Evolution from Explanation to Deployment
A duality known as Quantum 1.0 and Quantum 2.0 characterizes the state of the field today. Quantum 1.0 is the period when the founding giants of the 1920s sowed the seeds for quantum theory’s development as a revolutionary framework for understanding the natural world. Quantum 2.0, on the other hand, signifies a change in which ideas like superposition, entanglement, squeezing, and measurement back-action are functions that can be used in technology rather than only being theoretical tools.
Sensing, metrology, secure communication, and the quest for scalable quantum computing are just a few of the fields that are experiencing this second quantum revolution. APL Quantum has developed the idea of “quantum bridging” (QB) to help with this transition. Connecting fundamental knowledge (Q1.0) to engineered quantum functionality and systems-level deployment (Q2.0) is the goal of this endeavor.
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The Evolution from Explanation to Deployment
This bridging aim is demonstrated by the journal’s early record, especially its most cited publications as of January 2026, which include a wide variety of foreign contributions.
- Quantum Communication and Security: The integration of quantum communication into practical infrastructure is among the most important areas of influence. The optimal wavelength for daylight free-space quantum key distribution was determined in a seminal study from Technische Universität München, which offered the system-level clarity required to make experiments into standards. Furthermore, Grambling State University study has examined the difficulties of post-quantum cryptography, emphasizing that the quantum transition necessitates tackling issues of risk, migration, and social trust.
- Advancing the Computing Stack: Researchers are working to make the algorithmic stack in the field of quantum computing compatible with the limitations of existing hardware. The International Iberian Nanotechnology Laboratory made significant contributions to the field of shallow unitary decompositions for quantum gates, which aid in error reduction and compilation that considers connectivity. Additionally, a 2025 contribution by researchers from the National Physical Laboratory (UK) demonstrated the value of hybrid workflows that connect classical and quantum structures by introducing an Anderson impurity solver that combines tensor network techniques with quantum computing.
- Enabling Hardware and Quantum Resources: The “ecosystem-elevating” instruments that are utilized for measurement and readout are also essential to progress. Over a wide microwave range, a traveling-wave parametric amplifier created by the Jet Propulsion Laboratory has demonstrated near-quantum-limited noise performance. Concurrently, research on nonclassical light has transformed seemingly incongruous phenomena like the bosonic Mpemba effect from scientific oddities into instruments for dynamics and measurement.
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Maintaining Rigor in a Growing Ecosystem
The scientific community is faced with the difficulty of differentiating long-lasting advancements from transient “noise” when the term “quantum” is utilized in public discourse with differing degrees of accuracy. Open access, thorough peer review, and truthful scientific communication are crucial components of the infrastructure, according to APL Quantum. To assist scholars in navigating these intricate subfields, the journal’s scope is divided into “buckets”: Quantum Theory and Fundamentals; Quantum Phenomena and Resources; Applied Quantum Science; and Quantum Technologies.
This “quantum bridging” aims to make sure that fundamental knowledge is converted into engineered functionality, which then feeds back into fresh research inquiries. The combination of device physics, algorithms, and verification standards is necessary to address the most pressing issues, including fault-tolerant architectures or the quantum internet.
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The Path Ahead
The goal is still to transform the 2025 worldwide attention into a long-lasting capacity for improved engineering and engaged science. Addressing new first-order limitations that are increasingly essential to the performance discussion, such sustainability and energy prices, is part of this.
The community wants to advance the profession collectively by promoting an evidence-based culture and encouraging success that can be replicated and trusted. To ensure that the next phase of quantum technology is a genuinely global and cooperative undertaking, the link between discovery and deployment is being constructed across continents, covering Germany, Portugal, the US, the UK, Italy, China, and India.
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