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  1. Quantum - Wikipedia

    In physics, a quantum (pl.: quanta) is the minimum amount of any physical entity (physical property) involved in an interaction. The fundamental notion that a property can be "quantized" …

  2. Quantum | Definition & Facts | Britannica

    Oct 8, 2025 · Quantum, in physics, discrete natural unit, or packet, of energy, charge, angular momentum, or other physical property. Light, for example, appearing in some respects as a …

  3. What Is Quantum Physics? - Caltech Science Exchange

    Quantum physics is the study of matter and energy at the most fundamental level. It aims to uncover the properties and behaviors of the very building blocks of nature.

  4. What is Quantum Mechanics? Explained Simply

    May 5, 2025 · In this article, we’ll strip away the confusion and explore the key concepts of quantum mechanics in simple, engaging language—without sacrificing depth or wonder. Our …

  5. Demystifying Quantum: It’s Here, There and Everywhere

    Apr 10, 2024 · Quantum, often called quantum mechanics, deals with the granular and fuzzy nature of the universe and the physical behavior of its smallest particles. The idea of physical …

  6. What is Quantum Science? Quantum Leaps - NASA Science

    Nov 18, 2025 · Quantum physics is the study of extremely small atomic particles. Quantum science aims to better understand the world around us and apply quantum theories to real …

  7. Science 101: Quantum Mechanics - Argonne National Laboratory

    So, what is quantum? In a more general sense, the word “ quantum” can refer to the smallest possible amount of something. The field of quantum mechanics deals with the most …

  8. Scientists Just Unlocked Quantum Connections That Reach Across ...

    6 days ago · A new atom-by-atom crystal-building method could finally make long-distance quantum communication possible.

  9. DOE Explains...Quantum Mechanics | Department of Energy

    Quantum mechanics is the field of physics that explains how extremely small objects simultaneously have the characteristics of both particles (tiny pieces of matter) and waves (a …

  10. Scientists achieve breakthrough on quantum signaling

    1 day ago · A tiny device that entangles light and electrons without super-cooling could revolutionize quantum tech in cryptography, computing, and AI.