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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. 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 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.

  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. 'This is easily the most powerful quantum computer on Earth ...

    22 hours ago · Scientists have built a 98-qubit machine that they say performs better than any other quantum computer in the world. They've used it to gain new insights into …

  8. What Is Quantum Physics in Simple Terms? - Physics Q and A

    Dec 30, 2024 · Discover a clear, approachable explanation of quantum physics. Learn about wave-particle duality, entanglement, and real-world applications.

  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. 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 …