quantum


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Related to quantum: quantum physics, quantum theory, Quantum computing, Quantum numbers

quan·tum

 (kwŏn′təm)
n. pl. quan·ta (-tə)
1. Physics
a. The smallest amount of a physical quantity that can exist independently, especially a discrete quantity of electromagnetic radiation.
b. This amount of energy regarded as a unit.
2. A quantity or amount.
3. A specified portion.
4. Something that can be counted or measured.
5. A unit of acetylcholine, released at the synaptic cleft of a neuromuscular junction.
adj.
Relating to or based upon quantum theory.

[Latin, from neuter of quantus, how great; see quantity.]

quantum

(ˈkwɒntəm)
n, pl -ta (-tə)
1. (Atomic Physics) physics
a. the smallest quantity of some physical property, such as energy, that a system can possess according to the quantum theory
b. a particle with such a unit of energy
2. amount or quantity, esp a specific amount
3. (often used with a negative) the least possible amount that can suffice: there is not a quantum of evidence for your accusation.
4. something that can be quantified or measured
5. (modifier) loosely, sudden, spectacular, or vitally important: a quantum improvement.
[C17: from Latin quantus (adj) how much]

quan•tum

(ˈkwɒn təm)

n., pl. -ta (-tə),
adj. n.
1. quantity or amount: the least quantum of evidence.
2. share; portion.
3. a large quantity.
4.
a. the smallest excitation of a quantized wave or field, as a photon or phonon.
b. the fundamental unit of a quantized physical property, as angular momentum, and the smallest amount by which its magnitude can change.
adj.
5. sudden and significant: a quantum increase in productivity.
[1610–20; Latin quantus how much]

quan·tum

(kwŏn′təm)
Plural quanta
A unit of energy, especially electromagnetic energy, that is the smallest physical quantity that can exist on its own. A quantum acts both like a particle and like an energy wave. Photons are examples of quanta.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.quantum - a discrete amount of something that is analogous to the quantities in quantum theory
quantity - the concept that something has a magnitude and can be represented in mathematical expressions by a constant or a variable
2.quantum - (physics) the smallest discrete quantity of some physical property that a system can possess (according to quantum theory)
quantity, measure, amount - how much there is or how many there are of something that you can quantify
natural philosophy, physics - the science of matter and energy and their interactions; "his favorite subject was physics"
quasiparticle - a quantum of energy (in a crystal lattice or other system) that has position and momentum and can in some respects be regarded as a particle

quantum

noun
1. That which is allotted:
Informal: cut.
Slang: divvy.
2. A measurable whole:
Translations
quàntum
kvanttimäärämäärällinenmerkittäväsuuri
kvantummennyiség
量子
ilośćkwantkwantowakwantowekwantowy
quantum

quantum

[ˈkwɒntəm]
A. N (quanta (pl)) → cuanto m, quantum m
B. CPD quantum leap Nsalto m espectacular
quantum mechanics NSINGmecánica f cuántica
quantum number Nnúmero m cuántico
quantum physics NSINGfísica f cuántica
quantum theory Nteoría f cuántica

quantum

[ˈkwɒntəm] adj [physics, mechanics] → quantique; [theory] → des quantaquantum leap quantum jump n (fig)bond m en avantquantum mechanics nmécanique f quantique

quantum

n pl <quanta> (Phys) → Quant nt; the quality of life cannot be measured as a quantumLebensqualität kann nicht in Zahlen ausgedrückt werden; the quantum of satisfactiondas (Aus)maß an Zufriedenheit

quantum

:
quantum jump, quantum leap
n (Phys) → Quantensprung m; (fig)Riesenschritt m
quantum mechanics
n singQuantenmechanik f
quantum number
nQuantenzahl f
quantum physics
n singQuantenphysik f
quantum theory

quantum

[ˈkwɒntəm] (Phys)
1. nquanto
2. adj (number) → quantico/a; (mechanics) → quantistico/a

quan·tum

n. L. quantum, unidad de energía.
References in classic literature ?
If you are unable to make up your quantum, my boy, you had better address yourself to a principal; there are plenty of principals in the profession, you know, and what is not worth the while of one, may be worth the while of another; that's my recommendation to you, speaking as a subordinate.
But the success has not hitherto been answerable, partly by some error in the QUANTUM or composition, and partly by the perverseness of lads, to whom this bolus is so nauseous, that they generally steal aside, and discharge it upwards, before it can operate; neither have they been yet persuaded to use so long an abstinence, as the prescription requires.
that quantum of the means of subsistence, which is absolutely requisite in bare existence as a labourer.
With formal furniture, curtains are out of place; and an extensive volume of drapery of any kind is, under any circumstance, irreconcilable with good taste - the proper quantum, as well as the proper adjustment, depending upon the character of the general effect.
Key words: gravitation; neutrons; quantum mechanics.
In a paper published last month, researchers propose that this connection between the two fields might finally enable physicists to reach a decades-long goal: to exploit quantum physics to build a computer whose performance would far surpass that of computers based on the classical physics of Isaac Newton.
Quantum and Seagate have been battling out supremacy in hard disk, especially in the desktop space, for many years.
In an article in the November/December 1992 issue entitied "The Wise Silence," Robert Lanza says that, according to the current quantum mechanical view of reality, "We are all the ephemeral forms of a consciousness greater than ourselves.
Quantum will primarily target investments in the oil & gas sector, while also considering opportunities in the midstream, oil field service, coal, power, and alternative energy sectors.
Chan published one of the two simultaneous reports that showed how semiconductor quantum dots could tag cells with microscopic beacons of light.
Quantum Information Processing is a young and rapidly growing field of research at the intersection of physics, mathematics, and computer science.
The exotic innards of such quantum computers may prove to be unlike anything used in computers today (SN: 8/26/00, p.