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quantum

quantum

94 8.2
A specific small amount of something, often the smallest unit used to measure it
  • noun
  • /ˈkwɒntəm/
translation icon : cantidad
  • Each quantum of light, known as a photon, carries a specific amount of energy.
  • quantum mechanics
  • quantum physics
  • quantum theory

Planck's constant, H is a quantum of action.

Examples

  • OCP pioneered cyborg technology, and now we take a quantum leap forward.

  • They're used in superconductors, aerospace and quantum computing.

  • And, and we talked about the the four quantum numbers, right?

  • I read that with a quantum increase of seven.

  • How would you like to make a quantum jump?

  • The energy of a second vibrational quantum is less than the energy of the first.

    Academic text (2012)
  • Examples of new materials include quantum wires and dots in semiconductor or organic systems.

    Academic text (1994)
  • "But a quantum computer uses superposition of quantum states to check multiple possible factors simultaneously," said Louise.

    Fiction book (2002)
  • Most macroscopic systems decohere so rapidly as to make quantum interference effects practically unobservable.

    Academic text (1995)
  • Two independent measurements of the magnetic flux quantum in 1961 provided another nice verification of the pairing theory.

    Academic text (1993)

Synonyms

particle
vsquantum
  • Specialized
447 4.2

A very small piece or amount of something

is a defined discrete amount often treated as a unit rather than any small piece
atom
vsquantum
14 2.8

A very small amount of something, almost none

refers to a specific discrete amount not always the absolute smallest

Compounds

quantum mechanics
  • Specialized
31 5.6

A branch of physics that explains how very small particles like atoms and electrons behave

quantum physics
  • Specialized
19 5.5

The study of how matter and energy behave inside atoms and very small particles

8 5.5

A sudden big change that makes something much better

quantum theory
  • Specialized
7 7.4

A theory in physics that says some things like energy exist only as small, separate amounts

quantum computer
  • Specialized
4 7.0

A machine that uses tiny particles' strange behaviour to solve some problems much faster than normal computers

1 9.9

A theory in physics that explains how light and tiny particles interact

quantum field theory
  • Specialized
1 8.2

A branch of physics explaining how very small particles and fields interact

9.9

A joke name for a sorting method that tries random orders until the list is sorted and is very slow

9.9

A physics theory explaining the strong force that holds quarks inside protons and neutrons

quantum jump
  • Specialized
8.5

A sudden change in an electron's energy level when it gains or loses energy

A very large and sudden improvement or step forward

9.9

A way to get fair payment for work when no price is agreed

How Classical

classical
  • Specialized
15 6.5
semiclassical
  • Specialized
8.6
quantum
94 8.2

Surface Forms

quantum singular
quanta plural

Etymology

The word quantum comes from the Latin quantus, which means 'how much'. It is related to the common word quantity, so a quantum is a specific 'amount' of something and that is why we sometimes use it for a particular share or sum.