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quantum

[kwon-tuhm]

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noun

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.

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Quantum is always a great word to know.

So is spectrum. Does it mean:

light waves or particles, the band of colors produced when sunlight passes through a prism, comprising red, orange, yellow, green, blue, indigo, and violet

the atomic number or neutron number of an exceptionally stable nuclide

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Origin:
1610–20; noun use of neuter of Latin quantus how much

Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2012.
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Link To quantum

Example Sentences

Quantum cryptography is more powerful than any computer or eavesdropping equipment that could ever be built.

If your old dog won't learn any new tricks, try teaching it quantum physics instead.

In theory, quantum computers can do things ordinary computers cannot.

EXPAND

Quantum cryptography is more powerful than any computer or eavesdropping equipment that could ever be built.

If your old dog won't learn any new tricks, try teaching it quantum physics instead.

In theory, quantum computers can do things ordinary computers cannot.

Teleportation was long considered impossible because it violates the so-called uncertainty principle of quantum mechanics.

See what scientists are doing to try to understand the deepest mystery of quantum physics.

In the weird world of quantum physics, two linked particles can share a single fate, even when they're miles apart.

Quantum mechanics challenges this centuries-old framework of physics itself.

To go from there to policy changes, though, is a quantum leap.

Loop quantum gravity can be visualised, as its name suggests, as a mesh of loops.

Entangled photons are pairs of ordinary light particles that are mysteriously connected at the quantum level.

Quantum particles continue to behave in ways traditional particles do not.

Lasers are usually thought of as bright beams of light that rely on quantum mechanics to work.

In the world of quantum mechanics, clock metaphors and so forth seem a little out of place.

One of the fundamental tenets of quantum mechanics is that measuring a physical system always disturbs it.

The extra stuff-and the leading contender for explaining dark energy-is quantum vacuum energy.

What spoils quantum entanglement can also restore it.

Scientists hope a microscopic cantilever arm perched on a silicon chip will let them see quantum physics in action.

It's simply not true that each extra minute you spend on a student's paper equals an extra quantum of learning for them.

According to quantum mechanics, empty space is anything but empty.

Flip a coin in the quantum realm and the outcome won't be heads or tails.

It has been beset by hoaxes and remains shrouded in confusion, but quantum computing is no pipe dream.

But electrons have another inherent property: their quantum spin.

The quantum coin can also settle on heads and tails.

Extending an experiment at the foundation of quantum physics confirms that two is company and three is a crowd.

For one thing, good as quantum theory and relativity are at explaining things, neither can be explained in terms of the other.

Researchers nudge closer to the goal of quantum computing.

To send a quantum message, it helps to have a photon six-pack.

Quantum physics has apparently shown us that the observers presence and bias can actually affect the results.

The electrons trapped in a quantum dot arrange themselves as if they were part of an atom.

Science says that it came from quantum fluctuations in the void.

For years, some scientists have suspected that quantum mechanics might have a little something to do with biological processes.

There are lots of suggestions: molecular computing, quantum computing or neuromorphic engineering, to name three.

The ultra-dense remains of the galaxy's youngest supernova are full of bizarre quantum matter.

Quantum mechanics made fascinating for readers who'd rather skip the mathematical complexities.

Quantum details of plants' food-making ability could improve photovoltaic technology.

The year when the country, taking a quantum leap forward.

Quantum theory may turn out to have surprisingly practical applications in manufacturing faster computer chips.

In the quantum universe things seem to be led by consciousness.

According to quantum physics, empty space is not actually barren but is a boiling sea.

Twenty-three-year-old conjecture set to guide future quantum field theories.

They form when a cloud of atoms-sometimes millions or more-all enter the same quantum state and behave as one.

His work led him to discover a new world, the bizarre realm of quantum mechanics, where matter.

Shegelski has returned to his day job studying quantum mechanics, leaving some curling mysteries unexplained.

Just a few quantum objects could form the basis for a self-contained cooling machine.

Tiny, glowing particles called quantum dots may someday make it easy to precisely.

According to quantum mechanics, electrons don't have well-defined orbits around atoms, as the planets do around the sun.

Two groups of physicists have managed to shift the quantum entanglement.

According to quantum mechanics, physics cannot make definite predictions.

Now researchers have employed the water body as a testing ground for quantum teleportation.

Physicists have made transistors out of graphene and used it to explore odd quantum phenomena at room.

Quantum computing company banks on a long-shot form of quantum computing.

One such multiverse comes from quantum mechanics, the strange rules that govern nature at the subatomic scale.

Tiny magnetic atoms of chromium display superfluidity-and the possibility of exotic quantum phases.

Ultracold atoms could be used to make quantum computers and.

Quantum mechanics and its application to atoms and nuclei solved the puzzle.

Much has since been learnt about what makes magnets behave as they do, right down to the quantum details.

The components are so small, in fact, they exhibit quantum effects.

He said the work's biggest impact could come in futuristic technologies called quantum computing and quantum communication.

Ideally, perhaps attendance could be decided by a quantum decay, so you can never be sure if you attended or not.

Link between spatially separated ions could form the basis of quantum communications.

So much has been written about the grand quest to unite quantum mechanics and general relativity into a theory of everything.

If true it would explain why in quantum physiscs a particle can exist at both ends of the universe simultaneously.

Buzz about a quantum gravity theory that sends space and time back to their.

Such are the quirky freedoms of the quantum microworld that do not apply to automobiles, apples or people.

We therefore know that the fundamentals of choreography won't change even when our understanding of quantum gravity improves.

The big bang originated from a quantum state, and thus played by the deeply counterintuitive rules of quantum mechanics.

The advice that a watched pot won't boil may ring true in your kitchen, but in the quantum realm, anything goes.

Photosynthetic microbes employ quantum coherence to efficiently channel the incoming energy from.

For some additional cold water of reality, two words: quantum mechanics.

New quantum algorithm can solve monster-size equations.

Long before moviegoers had heard of quantum mechanics, they'd seen a quantum mechanic.

Large quantum computers could in principle handle some of the toughest computing problems, such as factoring numbers.

Quantum computers could code an entire simulated city containing thousands of humans in only a few grams.

Researchers claim to have produced sought-after quantum effect.

And it is the first quantum computer to simulate and calculate the behavior of a molecular, quantum system.

In their quest to build a computer that would take advantage of the weirdness of quantum mechanics, physicists are.

The quantum mechanics and string theorists are all wrong, we're about to find out.

Heisenberg realized that one implication of quantum physics is that the act of measurement always disturbs the object measured.

Williams sees pathways in quantum research that will overcome the current physical limits of silicon chips.

Molecules could one day work as quantum computers.

In addition, he said so little is known about quantum gravity.

Fledgling step toward quantum telecommunications relays.

Laser technique could put virus in two overlapping quantum states.

Quantum rivers, waterfalls and fountains you can see with your naked.

Setting ensembles of solid-state particles into entangled pairs holds promise for quantum computation.

For quantum mechanics, though, the event horizon is deeply paradoxical.

It allows information to be lost from our world, an act that quantum theory forbids.

In the quantum world, objects are described by wave functions.

COLLAPSE

Collins

World English Dictionary

quantum (ˈkwɒntəm)

—n , pl -ta
1.	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]

Collins English Dictionary - Complete & Unabridged 10th Edition
2009 © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009
Cite This Source

Etymonline

Word Origin & History

quantum

1619, "one's share or portion," from L. quantum "how much," neut. sing. of quantus "how great" (see quantity). Introduced in physics by Max Planck, 1900; reinforced by Einstein, 1905. Quantum theory is from 1912; quantum mechanics, 1922; quantum jump is first recorded 1955; quantum leap, 1970.

American Heritage

Medical Dictionary

quantum quan·tum (kwŏn'təm)
n. pl. quan·ta (-tə)

The smallest amount of a physical quantity that can exist independently, especially a discrete quantity of electromagnetic radiation.
This amount of energy regarded as a unit.
A quantity or an amount.

American Heritage

Science Dictionary

quantum

(kwŏn'təm) Pronunciation Key
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.

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Computing Dictionary

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"The receipt to make a speaker, and an applauded one too, is short and easy.—Take of common sense quantum sufficit, add a little application to the rules and orders of the House, throw obvious thoughts in a new light, and make up the whole with a large quantity of purity, correctness, and elegancy of style."

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