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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. What is Quantum Science? Quantum Leaps - NASA Science

    Sep 16, 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 …

  6. 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 …

  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. What is Quantum? - Science Math Resource Center | Montana …

    What is Quantum? Everything physical around us is made of matter, from the air we breathe to the water we drink – even our own bodies are made of matter. In its smallest measurable form, …

  9. What is quantum in physics and computing? - TechTarget

    Feb 27, 2025 · Learn about the history of quantum in physics and how quantum is used in computing. Examine several different potential use cases for quantum computing.

  10. Curious about quantum? - NSF - National Science Foundation

    Feb 16, 2023 · Q: What is quantum, and is there a "quantum realm"? The word “quantum" might sound mysterious, but it is commonly used to describe the world on the very small scales of …