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  • WordNet 3.6
    • n quantum (physics) the smallest discrete quantity of some physical property that a system can possess (according to quantum theory)
    • n quantum a discrete amount of something that is analogous to the quantities in quantum theory
    • ***
Webster's Revised Unabridged Dictionary
  • Interesting fact: Elwood Edwards did the voice for the AOL sound files (i.e. "You've got Mail!"). He is heard about 27 million times a day. The recordings were done before Quantum changed its name to AOL and the program was known as "Q-Link."
    • Quantum (Math) A definite portion of a manifoldness, limited by a mark or by a boundary.
    • Quantum Quantity; amount. "Without authenticating . . . the quantum of the charges."
    • ***
Century Dictionary and Cyclopedia
    • n quantum That which has quantity; a concrete quantity.
    • n quantum A prescribed, proper, or sufficient amount.
    • ***
Chambers's Twentieth Century Dictionary
    • n Quantum kwon′tum quantity: amount
    • ***


  • Niels Bohr
    Niels Bohr
    “If anybody says he can think about quantum physics without getting giddy, that only shows he has not understood the first thing about them.”
  • James Dye
    James Dye
    “Love everyone, quantum physicists are finding the reason.”


Webster's Revised Unabridged Dictionary
L., neuter of quantus, how great, how much. See Quantity,
Chambers's Twentieth Century Dictionary
L. quantum, neut. of quantus, how great.


In literature:

I'm only sorry you put it and quantum suff.
"Going To Maynooth Traits And Stories Of The Irish Peasantry, The Works of William Carleton, Volume Three" by William Carleton
Still, he performed his quantum of mischief, and yet lives to play his part in the great drama of Indian life.
"The Life and Adventures of Kit Carson, the Nestor of the Rocky Mountains, from Facts Narrated by Himself" by De Witt C. Peters
The quantum of alloy is also to be decided.
"Memoir, Correspondence, And Miscellanies, From The Papers Of Thomas Jefferson" by Thomas Jefferson
Quantum erga ecclesiam Anglicanam ejus studium non verba, sed facta, testentur.
"The Life of William Ewart Gladstone, Vol. 1 (of 3)" by John Morley
The sun, partly clouded over, casting its rays upon a star, "Tantum quantum" (As much as is vouchsafed).
"Memoirs of the Court of Queen Elizabeth" by Lucy Aikin
The man had used a simplified quantum mechanics without correction for relativistic effects.
"Security" by Poul William Anderson
I felt I had achieved at least the quantum state of a fool.
"Measure for a Loner" by James Judson Harmon
Macao, like other Portuguese towns, has many churches and its quantum of priests.
"Kathay: A Cruise in the China Seas" by W. Hastings Macaulay
In short, his post became untenable; and having swallowed his quantum of tea, he judged it expedient to evacuate.
"Shirley" by Charlotte Brontë
After which you had an idea that, which, as one must admit, possesses a certain quantum of originality.
"The German Classics, v. 20" by Various
Fecit hoc illa quantum potuit.
"View of the State of Europe during the Middle Ages, Vol. 3 (of 3)" by Henry Hallam
Do not weigh out the largest possible measure of dishonesty to the smallest possible quantum of correction.
"The Span o' Life" by William McLennan
It's a quantum advance over current technology.
"The Samurai Strategy" by Thomas Hoover
Every little rivulet roared as if it were a torrent that was out of all patience to deliver its quantum of water to the swollen St. Francis.
"Scenes and Adventures in the Semi-Alpine Region of the Ozark Mountains of Missouri and Arkansas" by Henry Rowe Schoolcraft
What quantum of theology?
"Sunday-School Success" by Amos R. Wells
Q. l. Quantum libet as much as is requisite.
"Chambers's Twentieth Century Dictionary (part 4 of 4: S-Z and supplements)" by Various
Quantum est in rebus inane!
"Quodlibet" by John P. Kennedy
Each man went to receive his quantum of rum and water.
"Off to Sea" by W.H.G. Kingston
M^r Sherman contended for referring both the quantum and the payment of it to the State Legislatures.
"The Journal of the Debates in the Convention which Framed the Constitution of the United States" by James Madison
Here the quantum of heat actually constitutes the quality of the water.
"A History of Philosophy in Epitome" by Albert Schwegler

In poetry:

Nec tantum Veneris, quantum studiosa culinae.
Insensible of soft desire,
Behold Colemira prove
More partial to the kitchen fire
Than to the fire of Love.
"Colemira. A Culinary Eclogue" by William Shenstone
As to weavers, no matter how poorly they feast;
But Peers, and such animals, fed up for show,
(Like the well-physick'd elephant, lately deceas'd,)
Take wonderful quantum of cramming, you know.
"An Expostulation to Lord King" by Thomas Moore
Your lines, my Friend, on Chloe's eyes,
Nor raise my wonder, or surprize,
Since every tender breast she fills
With pains, that baffle all your pills.
Here Laudanum, here Amber fails,
No quantum sufficit prevails.
"The Gentleman's Answer" by Samuel Bowden

In news:

A new theory suggests light arises because relativity's rules can be broken at the quantum level.
007 'Quantum' Is No Solace.
TLCA ready to take ' quantum leap ' in '12.
Tiny semiconductor crystals, called quantum dots, enable new forms of energy-efficient lighting.
A Quantum Leap in Computing.
INTERPLEX INDUSTRIES has acquired Quantum Leap Packaging, Inc (QLP).
At the International Microwave Symposium (IMS) this past June in Boston, MA, details were published on Freescale's validation and qualification of Quantum Leap Packaging's (QLP's) materials and packaging technology.
QLab Takes A Quantum Leap .
A futurist's vision of where quantum computers will take us.
A quantum leap in computing.
Quantum-dot lasers from Japan's QD Laser will make high-speed "fiber to the home" networks simpler, cheaper, and more power-efficient.
David Kahn's ' Quantum Leap ': Undoing past Wolves draft wrongs.
Study broadens understanding of quantum mechanics .
A 3-month-old gets quantum mechanics — and you don't.
Today on Pathways we are visiting with Samuel Avery, author of Buddha and the Quantum: Hearing the Voice of Every Cell.

In science:

Quantum mechanics is a statistical theory whose elements are ensembles of quantum systems, or ensembles of measurements on the same quantum system.
Quantum Zeno-like effect due to competing decoherence mechanisms
AFM chain, also control the lowtemperature properties of a range of random quantum phases. Because of their ubiquity, further investigation of what types of random quantum phases and transitions can occur should shed light more generally on the combined roles of randomness and quantum fluctuations.
Spin Reduction Transition in Spin-3/2 Random Heisenberg Chains
Using the continuous quantum walk to find the succession of (quantum)-queries to the oracle the problem can be solved with only polynomially many queries using a quantum computer .
Quantum random walks - an introductory overview
In quantum optics, the Jordan-Schwinger operators (4.6) play the role of the quantum Stokes parameters and their quantum statistics characterizes the polarization state.
Quantum Physics of Simple Optical Instruments
Measures of quantum chaos and quantum integrability with respect to eigenergies of quantum systems are defined and calculated.
Quantum information and entropy in random matrix ensembles
Measures of quantum chaos and quantum integrability with respect to eigenergies of quantum systems are defined and calculated.
Maximum entropy principle and quantum statistical information functional in random matrix ensembles
Measures of quantum chaos and quantum integrability with respect to eigenergies of quantum systems are defined and calculated.
Entropy, Maximum Entropy Priciple and quantum statistical information for various random matrix ensembles
Measures of quantum chaos and quantum integrability with respect to eigenergies of quantum systems are defined and calculated.
Quantum statistical information, entropy, Maximum Entropy Principle in various quantum random matrix ensembles
For a detailed description of the framework of numerical quantum computing one is referred to, where the notions of quantum measurement, quantum query, quantum algorithm and complexity are defined and thoroughly discussed, and applications to summation and integration problems are studied.
Randomized and Quantum Algorithms Yield a Speed-Up for Initial-Value Problems
Their quantum counterparts, random quantum states and operators, likewise play a vital role in quantum information theory.
Pseudo-random operators of the circular ensembles
If we agree, however, that non-relativistic quantum mechanics is a reduction of quantum field theory — as we almost always do — such a state is a reduction of a quantum field state in an infinite-dimensional Hilbert space, which gives the values of quantum field observables associated with the regions RA and RB .
Bell inequalities for random fields
The empirical principle that justifies the implicit description of quantum fluctuations that underlies quantum theory is our apparent inability to reduce the quantum fluctuations of our measurement apparatuses, in contrast to the almost universal minimization of thermal fluctuations in precision experiments.
Bell inequalities for random fields
When the quantum channel is provided by a maximally entangled pair, quantum teleportation faithfully transmits the quantum information.
Generalized Measurement and Conclusive Teleportation with Nonmaximal Entanglement
The physics behind this statistical problem is presented in subsection 2.2 which serves as introduction to basic notions of quantum theory, and subsection 2.3 which describes the model of quantum homodyne detection from quantum optics.
An invitation to quantum tomography (II)
But I should note that: (i): quantum particles are themselves transient and approximate patterns in the quantum state of an underlying quantum field or fields; for discussion of this, cf.
On the Persistence of Homogeneous Matter