Electronics & Semiconductors
Quantum science has the potential to revolutionize modern technology with more efficient computers, communication, and sensing devices. Challenges remain in achieving these technological goals, however, including how to precisely ...
Jan 31, 2023
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6
Engineering
A research team has proposed a new surface stabilization strategy that maximizes stability and efficiency by effectively reducing defects in the surface of perovskite quantum dots.
Oct 31, 2023
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32
Hi Tech & Innovation
A U.S. Army research result brings the quantum internet a step closer. Such an internet could offer the military security, sensing and timekeeping capabilities not possible with traditional networking approaches.
Sep 26, 2019
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8
Security
In a recent study merging the fields of quantum physics and computer science, Dr. Jun-Jie Zhang and Prof. Deyu Meng have explored the vulnerabilities of neural networks through the lens of the uncertainty principle in physics.
May 9, 2024
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Electronics & Semiconductors
Bandgap engineering can improve the performance of optoelectronic devices that aim to harness the energy of "hot" electrons, research from KAUST shows.
Sep 7, 2021
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56
Software
Concrete's properties as a material have made it an essential part of today's construction methods. Alongside its many advantages, however, this universal favorite has its share of drawbacks—the most prominent being that ...
Mar 1, 2022
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Computer Sciences
Teleportation is most commonly the stuff of science fiction and, for many, would conjure up the immortal phrase "Beam me up, Scotty".
Jul 2, 2020
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12
Computer Sciences
Distributed cloud storage is a hot topic for security researchers around the globe pursuing secure data storage, and a team in China is now merging quantum physics with mature cryptography and storage techniques to achieve ...
Nov 14, 2023
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35
Computer Sciences
Quantum computers, which can solve several complex problems exponentially faster than classical computers, are expected to improve artificial intelligence (AI) applications deployed in devices like autonomous vehicles; however, ...
Mar 7, 2024
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18
Machine learning & AI
Artificial intelligence refers, among other things, to machines' capacity to demonstrate some degree of what humans consider "intelligence". This process is being driven by the rapid advancement of machine learning: getting ...
Apr 18, 2019
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6
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.
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