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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

    May 31, 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. While many …

  4. Science 101: Quantum Mechanics - Argonne National Laboratory

    The field of quantum mechanics deals with the most fundamental bits of matter, energy and light and the ways they interact with each other to make up the world.

  5. 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 …

  6. Quantum Mechanics | Principles, Applications & Theory

    May 27, 2024 · Quantum mechanics stands as one of the most intriguing and fundamental branches of physics, delving into the behavior of particles at the atomic and subatomic levels. …

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

    Feb 27, 2025 · A quantum, the singular form of quanta, is the smallest discrete unit of any physical entity. For example, a quantum of light is a photon, and a quantum of electricity is an …

  8. Quantum - definition of quantum by The Free Dictionary

    1. quantity or amount: the least quantum of evidence. 2. share; portion. 3. a large quantity. 4. a. the smallest excitation of a quantized wave or field, as a photon or phonon. b. the fundamental …

  9. Progress Toward Practical Areas of Quantum Technology - CSIS

    Jul 15, 2025 · Quantum technologies have long underpinned modern foundational technologies, including lasers, atomic clocks, transistors, and semiconductor devices. Today, advancements …

  10. What Quantum Means | Quantum Information | Quantum

    The Midwest Quantum Collaboratory can show you want quantum means and has provided important quantum history and quantum information for your convenience. Learn why quantum …