Computer Sciences
(Tech Xplore)—There are conventional computers and then there is another kind—quantum computers, different, designed to leverage aspects of quantum physics to solve certain sorts of problems dramatically faster than ...
Engineering
This week a collaborative effort among computer scientists and academics to safeguard data is winning attention and it has quantum computing written all over it.
Electronics & Semiconductors
Think of them as master Lego builders, only at an atomic scale. Engineers at CU Boulder have taken a major step forward in combing advanced computer simulations with artificial intelligence to try to predict how electronics, ...
Jun 22, 2021
0
27
Computer Sciences
In today's data-driven world, data analytics has become a cornerstone of decision-making. However, despite the transformative potential, a significant number of analytics projects fail.
Engineering
The need to transition to clean energy is apparent, urgent and inescapable. We must limit Earth's rising temperature to within 1.5 C to avoid the worst effects of climate change—an especially daunting challenge in the face ...
Dec 17, 2021
0
5
Computer Sciences
In quantum computers and other experimental quantum systems, information spreads around the devices and quickly becomes scrambled like dice in a game of Boggle. This scrambling process happens as the basic units of the system, ...
Jan 25, 2023
0
8
Computer Sciences
Seeking to reduce the computing power needed for the widely used dynamic mode decomposition algorithm, a team of researchers in China led by Guo-Ping Guo developed a quantum-classical hybrid algorithm. They tested their algorithm ...
Aug 7, 2023
0
3
Computer Sciences
When you hear the words "time crystal" you could be forgiven for imagining something fantastic like a magic crystal ball or a device for time travel. But time crystals are very real, although they are a bit like magic.
Mar 3, 2022
0
10
Electronics & Semiconductors
Acoustic waves are slower than electromagnetic waves of the same frequency but, even in the high-speed world of computing and communications, that's not a bad thing. Short acoustic waves are easy to confine in nanoscale ...
Jun 28, 2022
1
247
Security
AI algorithms are everywhere. They underpin nearly all autonomous and robotic systems deployed in security applications. This includes facial recognition, biometrics, drones and autonomous vehicles used in combat surveillance ...
May 26, 2023
0
76
In physics, a quantum (plural: quanta) is an indivisible entity of a quantity that has the same units as the Planck constant and is related to both energy and momentum of elementary particles of matter (called fermions) and of photons and other bosons. The word comes from the Latin "quantus", for "how much." Behind this, one finds the fundamental notion that a physical property may be "quantized", referred to as "quantization". This means that the magnitude can take on only certain discrete numerical values, rather than any value, at least within a range. There is a related term of quantum number.
A photon is often referred to as a "light quantum". The energy of an electron bound to an atom (at rest) is said to be quantized, which results in the stability of atoms, and of matter in general. But these terms can be a little misleading, because what is quantized is this Planck's constant quantity whose units can be viewed as either energy multiplied by time or momentum multiplied by distance.
Usually referred to as quantum "mechanics", it is regarded by virtually every professional physicist as the most fundamental framework we have for understanding and describing nature at the infinitesimal level, for the very practical reason that it works. It is "in the nature of things", not a more or less arbitrary human preference.
This text uses material from Wikipedia, licensed under CC BY-SA
