Definitions for quantumˈkwɒn təm

This page provides all possible meanings and translations of the word quantum

Random House Webster's College Dictionary

quan•tumˈkwɒn təm(n.; adj.)(pl.)-ta

  1. (n.)quantity or amount:

    the least quantum of evidence.

  2. share; portion.

  3. a large quantity.

  4. the smallest excitation of a quantized wave or field, as a photon or phonon. the fundamental unit of a quantized physical property, as angular momentum, and the smallest amount by which its magnitude can change.

    Category: Physics

  5. (adj.)sudden and significant:

    a quantum increase in productivity.

    Category: Common Vocabulary

Origin of quantum:

1610–20; L quantus how much

Princeton's WordNet

  1. quantum(noun)

    a discrete amount of something that is analogous to the quantities in quantum theory

  2. quantum(noun)

    (physics) the smallest discrete quantity of some physical property that a system can possess (according to quantum theory)

Wiktionary

  1. quantum(Noun)

    The total amount of something; quantity.

  2. quantum(Noun)

    The amount or quantity observably present, or available.

  3. quantum(Noun)

    The smallest possible, and therefore indivisible, unit of a given quantity or quantifiable phenomenon.

  4. quantum(Adjective)

    Of a change, sudden or discrete, without intermediate stages.

  5. quantum(Adjective)

    Of a change, significant.

  6. quantum(Adjective)

    Involving quanta

  7. quantum(Adjective)

    Relating to a quantum computer

  8. Origin: From quantum, noun use of neuter form of quantus.

Webster Dictionary

  1. Quantum(noun)

    quantity; amount

  2. Quantum(noun)

    a definite portion of a manifoldness, limited by a mark or by a boundary

Freebase

  1. Quantum

    In physics, a quantum is the minimum amount of any physical entity involved in an interaction. Behind this, one finds the fundamental notion that a physical property may be "quantized," referred to as "the hypothesis of quantization". This means that the magnitude can take on only certain discrete values. There is a related term of quantum number. An example of an entity that is quantized is the energy transfer of elementary particles of matter through bosons and of photons. A photon is a single quantum of light, and is referred to as a "light quantum". The energy of an electron bound to an atom orbital is said to be quantized, which results in the stability of atoms, and of matter in general. As incorporated into the theory of quantum mechanics, this is regarded by physicists as part of the fundamental framework for understanding and describing nature at the infinitesimal level. Normally quanta are considered to be discrete packets with energy stored in them. Max Planck considered these quanta to be particles that can change their form. This phenomenon can be observed in black-body radiation during temperature fluctuation.

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