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# quantum

[ **kwon**-t*uh*m ]

## noun

*plural***quan·ta**[kwon, -t, uh].- quantity or amount:
*the least quantum of evidence.* - a particular amount.
- a share or portion.
- a large quantity; bulk.
*Physics.*- the smallest quantity of radiant energy, equal to Planck's constant times the frequency of the associated radiation.
- the fundamental unit of a quantized physical magnitude, as angular momentum.

## adjective

- sudden and significant:
*a quantum increase in productivity.*

quantum

/ ˈkwɒntəm /

## noun

- physics
- the smallest quantity of some physical property, such as energy, that a system can possess according to the quantum theory
- a particle with such a unit of energy

- amount or quantity, esp a specific amount
*often used with a negative*the least possible amount that can suffice*there is not a quantum of evidence for your accusation*- something that can be quantified or measured
*modifier*loosely, sudden, spectacular, or vitally important*a quantum improvement*

quantum

/ kwŏn**′**təm /

, Plural *quanta*

- A discrete, indivisible manifestation of a physical property, such as a force or angular momentum. Some quanta take the form of elementary particles; for example, the quantum of electromagnetic radiation is the photon, while the quanta of the weak force are the W and Z particles.
- See also quantum state

## Word History and Origins

Origin of quantum^{1}

*Latin*

*quantus*how much

## Word History and Origins

Origin of quantum^{1}

*quantus*(adj) how much

## Example Sentences

In other words, “if you’re building a quantum computer, put it in a basement.”

There’s no doubt quantum theory is successful at the practical level.

That is, we don’t need quantum computing or nanotube transistors to augment or replace silicon chips yet.

What makes the quantum computing competition different from most in the industry is that rivals are taking wildly different approaches.

Zooming in to that hidden center involves virtual particles — quantum fluctuations that subtly influence each interaction’s outcome.

He majored in mathematical physics, studying mind-bending theories of quantum mechanics and partial differential equations.

For that reason, researchers have developed a framework to describe quantum theory in combination with general relativity.

Weird as the theory is, invoking “quantum physics” is not an escape clause from obeying physical laws.

Each type of atom and molecule has its own unique spectrum, according to the rules of quantum mechanics.

Which is why it continues to go forward, even as the odds for success dip to the quantum level.

He went off into a happy mist of quantum mechanics, oscillation theory, and periodic functions of a complex variable.

The man had used a simplified quantum mechanics without correction for relativistic effects.

The ortho molecules rotate with odd rotational quantum numbers, while the para molecules rotate with even quantum numbers.

The first is that the papers could be turned into a novel with hardly any important alteration, and with only quantum suff.

Paretur itaque librorum quantum satis sit, nihil in apparatum.

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