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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 Entanglement? NASA Science

    Apr 2, 2025 · Quantum entanglement is the theory that particles of the same origin, which were once connected, always stay connected, even through time and space.

  5. 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 …

  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. 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 …

  8. 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.

  9. 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 …

  10. 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, …