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  1. Quantum mechanics - Wikipedia

    Quantum mechanics is the fundamental physical theory that describes the behavior of matter and of light; its unusual characteristics typically occur at and below the scale of atoms. [2]: 1.1 It is …

  2. Quantum mechanics | Definition, Development, & Equations

    Dec 18, 2025 · Quantum mechanics, science dealing with the behavior of matter and light on the atomic and subatomic scale. It attempts to describe and account for the properties of …

  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. The Basics of Quantum Physics - sciencenewstoday.org

    Jul 26, 2025 · As quantum theory advanced, physicists began to see particles not as tiny billiard balls, but as excitations in quantum fields. Every type of particle—electron, quark, photon—is a …

  5. Quantum physics explained - King's College London

    Apr 14, 2025 · Dr Damián Galante said: "Quantum physics is the framework in which we describe physical interactions at the microscopic scale. It is used to explain a variety of microscopic …

  6. Quantum Theory - Physics Book

    Dec 7, 2024 · Quantum theory is the accepted modern explanation of the observed behaviors of matter based upon atomic energy and particle interactions.

  7. Science 101: Quantum Mechanics - Argonne National Laboratory

    Although we don’t see these types of things in our everyday lives, similar curiosities appear to exist all around us in the fundamental behavior of our universe and its smallest building blocks. …

  8. Introduction to quantum mechanics - Wikipedia

    Quantum mechanics is the study of matter and matter's interactions with energy on the scale of atomic and subatomic particles. By contrast, classical physics explains matter and energy only …

  9. Quantum Physics Explained: From Core Ideas to Real Applications ...

    It governs how particles behave at the atomic and subatomic level and explains phenomena that classical physics simply can’t. In this article, we’ll explore the key ideas behind quantum …

  10. What is Quantum Physics? A Beginner’s Guide

    Apr 28, 2025 · Quantum physics is a revolution not just in science but in our very conception of what is real. It shows that the universe is far stranger, more beautiful, and more interconnected …