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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? A Beginner’s Guide

    Apr 28, 2025 · For the beginner, quantum physics may seem like stepping into a dream where the rules are upside down. But as with any great journey, the more you explore, the more you …

  4. QUANTUM Definition & Meaning - Merriam-Webster

    The meaning of QUANTUM is quantity, amount. How to use quantum in a sentence.

  5. 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.

  6. 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.

  7. 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.

  8. 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 …

  9. Quantum mechanics - Wikipedia

    When quantum systems interact, the result can be the creation of quantum entanglement: their properties become so intertwined that a description of the whole solely in terms of the …

  10. 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 …