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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. 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 …

  3. What is quantum theory? | Definition from TechTarget

    Dec 23, 2024 · Quantum theory, or quantum mechanics, is the theoretical basis of modern physics that explains the nature and behavior of matter and energy on the subatomic level.

  4. What Is Quantum Theory? - BYJU'S

    Quantum theory is the foundational theory for explaining subatomic phenomena. The theory basically explains the nature and behaviour of matter and energy on the atomic level.

  5. Quantum mechanics | Definition, Development, & Equations

    Oct 7, 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 …

  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. Science Simplified: What Is Quantum Mechanics? - SciTechDaily

    Mar 23, 2024 · Quantum mechanics is a theory that deals with the most fundamental bits of matter, energy and light and the ways they interact with each other to make up the world. This …

  8. What Is Quantum Theory? - Dataconomy

    Aug 11, 2025 · Quantum theory, also known as quantum mechanics, is the fundamental framework of modern physics that describes the behavior of matter and energy at the …

  9. Quantum Physics Introduction for Beginners

    In this quantum physics introduction for beginners, we will explain quantum physics, also called quantum mechanics, in simple terms. Quantum physics is possibly the most fascinating part of …

  10. 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. …